32721479716 has 12 divisors (see below), whose sum is σ = 57285761932. Its totient is φ = 16354119168.

The previous prime is 32721479701. The next prime is 32721479737. The reversal of 32721479716 is 61797412723.

It can be written as a sum of positive squares in 2 ways, for example, as 14617777216 + 18103702500 = 120904^2 + 134550^2 .

It is a hoax number, since the sum of its digits (49) 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 32721479716.

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, 1644045 + ... + 1663828.

Almost surely, 2^32721479716 is an apocalyptic number.

It is an amenable number.

32721479716 is a deficient number, since it is larger than the sum of its proper divisors (24564282216).

32721479716 is a wasteful number, since it uses less digits than its factorization.

32721479716 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3310350 (or 3310348 counting only the distinct ones).

The product of its digits is 889056, while the sum is 49.

The spelling of 32721479716 in words is "thirty-two billion, seven hundred twenty-one million, four hundred seventy-nine thousand, seven hundred sixteen".