387215173272 has 32 divisors (see below), whose sum is σ = 970675660800. Its totient is φ = 128720027424.

The previous prime is 387215173253. The next prime is 387215173277. The reversal of 387215173272 is 272371512783.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (387215173277) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21972072 + ... + 21989687.

It is an arithmetic number, because the mean of its divisors is an integer number (30333614400).

Almost surely, 2^387215173272 is an apocalyptic number.

It is an amenable number.

387215173272 is an abundant number, since it is smaller than the sum of its proper divisors (583460487528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

387215173272 is a wasteful number, since it uses less digits than its factorization.

387215173272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43962135 (or 43962131 counting only the distinct ones).

The product of its digits is 987840, while the sum is 48.

The spelling of 387215173272 in words is "three hundred eighty-seven billion, two hundred fifteen million, one hundred seventy-three thousand, two hundred seventy-two".