245421631246 has 16 divisors (see below), whose sum is σ = 401608563840. Its totient is φ = 111552639480.

The previous prime is 245421631243. The next prime is 245421631253. The reversal of 245421631246 is 642136124542.

It is a super-3 number, since 3×245421631246³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 245421631199 and 245421631208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (245421631243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1050655 + ... + 1262821.

It is an arithmetic number, because the mean of its divisors is an integer number (25100535240).

Almost surely, 2^245421631246 is an apocalyptic number.

245421631246 is a deficient number, since it is larger than the sum of its proper divisors (156186932594).

245421631246 is a wasteful number, since it uses less digits than its factorization.

245421631246 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264759.

The product of its digits is 276480, while the sum is 40.

Adding to 245421631246 its reverse (642136124542), we get a palindrome (887557755788).

The spelling of 245421631246 in words is "two hundred forty-five billion, four hundred twenty-one million, six hundred thirty-one thousand, two hundred forty-six".