3972966528 has 32 divisors (see below), whose sum is σ = 10553193360. Its totient is φ = 1324322048.

The previous prime is 3972966493. The next prime is 3972966581. The reversal of 3972966528 is 8256692793.

It is a tau number, because it is divible by the number of its divisors (32).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5172750 + ... + 5173517.

Almost surely, 2^3972966528 is an apocalyptic number.

It is an amenable number.

3972966528 is an abundant number, since it is smaller than the sum of its proper divisors (6580226832).

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

3972966528 is a wasteful number, since it uses less digits than its factorization.

3972966528 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10346284 (or 10346272 counting only the distinct ones).

The product of its digits is 9797760, while the sum is 57.

The square root of 3972966528 is about 63031.4725196865. The cubic root of 3972966528 is about 1583.8168852704.

The spelling of 3972966528 in words is "three billion, nine hundred seventy-two million, nine hundred sixty-six thousand, five hundred twenty-eight".