64396987202 has 16 divisors (see below), whose sum is σ = 97980194592. Its totient is φ = 31739568000.

The previous prime is 64396987169. The next prime is 64396987217. The reversal of 64396987202 is 20278969346.

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, 612548 + ... + 709935.

It is an arithmetic number, because the mean of its divisors is an integer number (6123762162).

Almost surely, 2^64396987202 is an apocalyptic number.

64396987202 is a deficient number, since it is larger than the sum of its proper divisors (33583207390).

64396987202 is a wasteful number, since it uses less digits than its factorization.

64396987202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322833.

The product of its (nonzero) digits is 7838208, while the sum is 56.

The spelling of 64396987202 in words is "sixty-four billion, three hundred ninety-six million, nine hundred eighty-seven thousand, two hundred two".