387907045631 has 12 divisors (see below), whose sum is σ = 451391783472. Its totient is φ = 332379034848.

The previous prime is 387907045621. The next prime is 387907045649. The reversal of 387907045631 is 136540709783.

It is not a de Polignac number, because 387907045631 - 2¹⁰ = 387907044607 is a prime.

It is a super-2 number, since 2×387907045631² (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 (387907045621) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1195715 + ... + 1485108.

It is an arithmetic number, because the mean of its divisors is an integer number (37615981956).

Almost surely, 2^387907045631 is an apocalyptic number.

387907045631 is a deficient number, since it is larger than the sum of its proper divisors (63484737841).

387907045631 is a wasteful number, since it uses less digits than its factorization.

387907045631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2683790 (or 2683783 counting only the distinct ones).

The product of its (nonzero) digits is 3810240, while the sum is 53.

The spelling of 387907045631 in words is "three hundred eighty-seven billion, nine hundred seven million, forty-five thousand, six hundred thirty-one".