64942612420 has 24 divisors (see below), whose sum is σ = 155862270144. Its totient is φ = 22266038496.

The previous prime is 64942612403. The next prime is 64942612439. The reversal of 64942612420 is 2421624946.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 231937762 + ... + 231938041.

It is an arithmetic number, because the mean of its divisors is an integer number (6494261256).

Almost surely, 2^64942612420 is an apocalyptic number.

It is an amenable number.

64942612420 is an abundant number, since it is smaller than the sum of its proper divisors (90919657724).

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

64942612420 is a wasteful number, since it uses less digits than its factorization.

64942612420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 463875819 (or 463875817 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 40.

The spelling of 64942612420 in words is "sixty-four billion, nine hundred forty-two million, six hundred twelve thousand, four hundred twenty".