64368546642 has 16 divisors (see below), whose sum is σ = 143041214880. Its totient is φ = 21456182196.

The previous prime is 64368546623. The next prime is 64368546667. The reversal of 64368546642 is 24664586346.

64368546642 is a `hidden beast` number, since 6 + 4 + 36 + 8 + 546 + 64 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54), and also a Moran number because the ratio is a prime number: 1192010123 = 64368546642 / (6 + 4 + 3 + 6 + 8 + 5 + 4 + 6 + 6 + 4 + 2).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 596005008 + ... + 596005115.

It is an arithmetic number, because the mean of its divisors is an integer number (8940075930).

Almost surely, 2^64368546642 is an apocalyptic number.

64368546642 is an abundant number, since it is smaller than the sum of its proper divisors (78672668238).

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

64368546642 is a wasteful number, since it uses less digits than its factorization.

64368546642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1192010134 (or 1192010128 counting only the distinct ones).

The product of its digits is 19906560, while the sum is 54.

The spelling of 64368546642 in words is "sixty-four billion, three hundred sixty-eight million, five hundred forty-six thousand, six hundred forty-two".