387491756287996 has 12 divisors (see below), whose sum is σ = 678115915486240. Its totient is φ = 193744351863360.

The previous prime is 387491756287931. The next prime is 387491756287997. The reversal of 387491756287996 is 699782657194783.

It is a super-2 number, since 2×387491756287996² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 387491756287996.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387491756287997) 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 3 ways as a sum of consecutive naturals, for example, 380998836 + ... + 382014523.

Almost surely, 2^{387491756287996} is an apocalyptic number.

It is an amenable number.

387491756287996 is a deficient number, since it is larger than the sum of its proper divisors (290624159198244).

387491756287996 is a wasteful number, since it uses less digits than its factorization.

387491756287996 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 763140324 (or 763140322 counting only the distinct ones).

The product of its digits is 69132994560, while the sum is 91.

The spelling of 387491756287996 in words is "three hundred eighty-seven trillion, four hundred ninety-one billion, seven hundred fifty-six million, two hundred eighty-seven thousand, nine hundred ninety-six".