245023253345451 has 64 divisors (see below), whose sum is σ = 376073924954112. Its totient is φ = 139001051676672.

The previous prime is 245023253345407. The next prime is 245023253345473. The reversal of 245023253345451 is 154543352320542.

It is a happy number.

It is not a de Polignac number, because 245023253345451 - 2¹¹ = 245023253343403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 245023253345451.

It is not an unprimeable number, because it can be changed into a prime (245023253345401) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11169394755 + ... + 11169416691.

It is an arithmetic number, because the mean of its divisors is an integer number (5876155077408).

Almost surely, 2^{245023253345451} is an apocalyptic number.

245023253345451 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

245023253345451 is a deficient number, since it is larger than the sum of its proper divisors (131050671608661).

245023253345451 is a wasteful number, since it uses less digits than its factorization.

245023253345451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25948.

The product of its (nonzero) digits is 8640000, while the sum is 48.

The spelling of 245023253345451 in words is "two hundred forty-five trillion, twenty-three billion, two hundred fifty-three million, three hundred forty-five thousand, four hundred fifty-one".