64942612417 has 12 divisors (see below), whose sum is σ = 68165435520. Its totient is φ = 61842932496.

The previous prime is 64942612403. The next prime is 64942612439. The reversal of 64942612417 is 71421624946.

It is not a de Polignac number, because 64942612417 - 2¹⁵ = 64942579649 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64942612457) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 440317 + ... + 569002.

It is an arithmetic number, because the mean of its divisors is an integer number (5680452960).

Almost surely, 2^64942612417 is an apocalyptic number.

It is an amenable number.

64942612417 is a deficient number, since it is larger than the sum of its proper divisors (3222823103).

64942612417 is a wasteful number, since it uses less digits than its factorization.

64942612417 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1009440 (or 1009403 counting only the distinct ones).

The product of its digits is 580608, while the sum is 46.

The spelling of 64942612417 in words is "sixty-four billion, nine hundred forty-two million, six hundred twelve thousand, four hundred seventeen".