64969278904 has 16 divisors (see below), whose sum is σ = 121820806800. Its totient is φ = 32483730432.

The previous prime is 64969278863. The next prime is 64969278917. The reversal of 64969278904 is 40987296946.

It is a happy number.

It is a congruent number.

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, 263917 + ... + 446755.

It is an arithmetic number, because the mean of its divisors is an integer number (7613800425).

Almost surely, 2^64969278904 is an apocalyptic number.

It is an amenable number.

64969278904 is a deficient number, since it is larger than the sum of its proper divisors (56851527896).

64969278904 is a wasteful number, since it uses less digits than its factorization.

64969278904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 227262 (or 227258 counting only the distinct ones).

The product of its (nonzero) digits is 47029248, while the sum is 64.

The spelling of 64969278904 in words is "sixty-four billion, nine hundred sixty-nine million, two hundred seventy-eight thousand, nine hundred four".