3896664880 has 40 divisors (see below), whose sum is σ = 9139941792. Its totient is φ = 1544868864.

The previous prime is 3896664851. The next prime is 3896664907. The reversal of 3896664880 is 884666983.

It is a tau number, because it is divible by the number of its divisors (40).

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, 206484 + ... + 224563.

Almost surely, 2^3896664880 is an apocalyptic number.

It is an amenable number.

3896664880 is an abundant number, since it is smaller than the sum of its proper divisors (5243276912).

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

3896664880 is a wasteful number, since it uses less digits than its factorization.

3896664880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 431173 (or 431167 counting only the distinct ones).

The product of its (nonzero) digits is 11943936, while the sum is 58.

The square root of 3896664880 is about 62423.2719424415. The cubic root of 3896664880 is about 1573.6120978970.

The spelling of 3896664880 in words is "three billion, eight hundred ninety-six million, six hundred sixty-four thousand, eight hundred eighty".