64236806908 has 12 divisors (see below), whose sum is σ = 115156227312. Its totient is φ = 31335027680.

The previous prime is 64236806861. The next prime is 64236807007. The reversal of 64236806908 is 80960863246.

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, 195843760 + ... + 195844087.

It is an arithmetic number, because the mean of its divisors is an integer number (9596352276).

Almost surely, 2^64236806908 is an apocalyptic number.

It is an amenable number.

64236806908 is a deficient number, since it is larger than the sum of its proper divisors (50919420404).

64236806908 is a wasteful number, since it uses less digits than its factorization.

64236806908 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391687892 (or 391687890 counting only the distinct ones).

The product of its (nonzero) digits is 2985984, while the sum is 52.

The spelling of 64236806908 in words is "sixty-four billion, two hundred thirty-six million, eight hundred six thousand, nine hundred eight".