64747094942 has 24 divisors (see below), whose sum is σ = 99559003320. Its totient is φ = 31580221680.

The previous prime is 64747094857. The next prime is 64747094957. The reversal of 64747094942 is 24949074746.

It is a congruent number.

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 11 ways as a sum of consecutive naturals, for example, 2988284 + ... + 3009872.

It is an arithmetic number, because the mean of its divisors is an integer number (4148291805).

Almost surely, 2^64747094942 is an apocalyptic number.

64747094942 is a deficient number, since it is larger than the sum of its proper divisors (34811908378).

64747094942 is a wasteful number, since it uses less digits than its factorization.

64747094942 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22488 (or 22445 counting only the distinct ones).

The product of its (nonzero) digits is 12192768, while the sum is 56.

The spelling of 64747094942 in words is "sixty-four billion, seven hundred forty-seven million, ninety-four thousand, nine hundred forty-two".