64327642936 has 64 divisors (see below), whose sum is σ = 131229331200. Its totient is φ = 29485747200.

The previous prime is 64327642931. The next prime is 64327642957. The reversal of 64327642936 is 63924672346.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64327642931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 296796 + ... + 465556.

It is an arithmetic number, because the mean of its divisors is an integer number (2050458300).

Almost surely, 2^64327642936 is an apocalyptic number.

It is an amenable number.

64327642936 is an abundant number, since it is smaller than the sum of its proper divisors (66901688264).

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

64327642936 is a wasteful number, since it uses less digits than its factorization.

64327642936 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168880 (or 168876 counting only the distinct ones).

The product of its digits is 7838208, while the sum is 52.

The spelling of 64327642936 in words is "sixty-four billion, three hundred twenty-seven million, six hundred forty-two thousand, nine hundred thirty-six".