64835418836 has 12 divisors (see below), whose sum is σ = 115385067840. Its totient is φ = 31868256600.

The previous prime is 64835418799. The next prime is 64835418841. The reversal of 64835418836 is 63881453846.

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, 137362940 + ... + 137363411.

It is an arithmetic number, because the mean of its divisors is an integer number (9615422320).

Almost surely, 2^64835418836 is an apocalyptic number.

It is an amenable number.

64835418836 is a deficient number, since it is larger than the sum of its proper divisors (50549649004).

64835418836 is a wasteful number, since it uses less digits than its factorization.

64835418836 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274726414 (or 274726412 counting only the distinct ones).

The product of its digits is 13271040, while the sum is 56.

The spelling of 64835418836 in words is "sixty-four billion, eight hundred thirty-five million, four hundred eighteen thousand, eight hundred thirty-six".