245402400554451 has 16 divisors (see below), whose sum is σ = 415496127923200. Its totient is φ = 140229943173864.

The previous prime is 245402400554387. The next prime is 245402400554459. The reversal of 245402400554451 is 154455004204542.

245402400554451 is a `hidden beast` number, since 2 + 4 + 5 + 4 + 0 + 2 + 40 + 0 + 554 + 4 + 51 = 666.

It is not a de Polignac number, because 245402400554451 - 2⁶ = 245402400554387 is a prime.

It is a super-2 number, since 2×245402400554451² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 245402400554397 and 245402400554406.

It is not an unprimeable number, because it can be changed into a prime (245402400554459) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 649212699691 + ... + 649212700068.

It is an arithmetic number, because the mean of its divisors is an integer number (25968507995200).

Almost surely, 2^{245402400554451} is an apocalyptic number.

245402400554451 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

245402400554451 is a deficient number, since it is larger than the sum of its proper divisors (170093727368749).

245402400554451 is a wasteful number, since it uses less digits than its factorization.

245402400554451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1298425399775 (or 1298425399769 counting only the distinct ones).

The product of its (nonzero) digits is 2560000, while the sum is 45.

Adding to 245402400554451 its reverse (154455004204542), we get a palindrome (399857404758993).

The spelling of 245402400554451 in words is "two hundred forty-five trillion, four hundred two billion, four hundred million, five hundred fifty-four thousand, four hundred fifty-one".