815037506672 has 20 divisors (see below), whose sum is σ = 1580295487056. Its totient is φ = 407219316480.

The previous prime is 815037506671. The next prime is 815037506761. The reversal of 815037506672 is 276605730518.

It is a super-3 number, since 3×815037506672³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a hoax number, since the sum of its digits (50) coincides with the sum of the digits of its distinct prime factors.

It is a self number, because there is not a number n which added to its sum of digits gives 815037506672.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (815037506671) 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 3 ways as a sum of consecutive naturals, for example, 18692348 + ... + 18735899.

Almost surely, 2^815037506672 is an apocalyptic number.

It is an amenable number.

815037506672 is a deficient number, since it is larger than the sum of its proper divisors (765257980384).

815037506672 is a wasteful number, since it uses less digits than its factorization.

815037506672 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37429616 (or 37429610 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 50.

The spelling of 815037506672 in words is "eight hundred fifteen billion, thirty-seven million, five hundred six thousand, six hundred seventy-two".