64702468779013 has 16 divisors (see below), whose sum is σ = 70728217133056. Its totient is φ = 58826743335360.

The previous prime is 64702468778953. The next prime is 64702468779041. The reversal of 64702468779013 is 31097786420746.

It is not a de Polignac number, because 64702468779013 - 2²¹ = 64702466681861 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64702468779083) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2599795 + ... + 11668927.

It is an arithmetic number, because the mean of its divisors is an integer number (4420513570816).

Almost surely, 2^{64702468779013} is an apocalyptic number.

It is an amenable number.

64702468779013 is a deficient number, since it is larger than the sum of its proper divisors (6025748354043).

64702468779013 is a wasteful number, since it uses less digits than its factorization.

64702468779013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9077404.

The product of its (nonzero) digits is 85349376, while the sum is 64.

The spelling of 64702468779013 in words is "sixty-four trillion, seven hundred two billion, four hundred sixty-eight million, seven hundred seventy-nine thousand, thirteen".