6537987312 has 40 divisors (see below), whose sum is σ = 16938238800. Its totient is φ = 2173079040.

The previous prime is 6537987301. The next prime is 6537987353. The reversal of 6537987312 is 2137897356.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 178389 + ... + 211892.

It is an arithmetic number, because the mean of its divisors is an integer number (423455970).

Almost surely, 2^6537987312 is an apocalyptic number.

It is an amenable number.

6537987312 is an abundant number, since it is smaller than the sum of its proper divisors (10400251488).

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

6537987312 is a wasteful number, since it uses less digits than its factorization.

6537987312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 390641 (or 390635 counting only the distinct ones).

The product of its digits is 1905120, while the sum is 51.

The square root of 6537987312 is about 80857.8215882669. The cubic root of 6537987312 is about 1869.8841103698.

The spelling of 6537987312 in words is "six billion, five hundred thirty-seven million, nine hundred eighty-seven thousand, three hundred twelve".