425673637631 has 8 divisors (see below), whose sum is σ = 491687196624. Its totient is φ = 364212737920.

The previous prime is 425673637621. The next prime is 425673637651. The reversal of 425673637631 is 136736376524.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 425673637631 - 2¹⁸ = 425673375487 is a prime.

It is a super-2 number, since 2×425673637631² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (425673637621) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1138164620 + ... + 1138164993.

It is an arithmetic number, because the mean of its divisors is an integer number (61460899578).

Almost surely, 2^425673637631 is an apocalyptic number.

425673637631 is a deficient number, since it is larger than the sum of its proper divisors (66013558993).

425673637631 is a wasteful number, since it uses less digits than its factorization.

425673637631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2276329641.

The product of its digits is 11430720, while the sum is 53.

The spelling of 425673637631 in words is "four hundred twenty-five billion, six hundred seventy-three million, six hundred thirty-seven thousand, six hundred thirty-one".