64119078364 has 24 divisors (see below), whose sum is σ = 129609689328. Its totient is φ = 27430621440.

The previous prime is 64119078349. The next prime is 64119078367. The reversal of 64119078364 is 46387091146.

It is a super-2 number, since 2×64119078364² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64119078367) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42859599 + ... + 42861094.

It is an arithmetic number, because the mean of its divisors is an integer number (5400403722).

Almost surely, 2^64119078364 is an apocalyptic number.

It is an amenable number.

64119078364 is an abundant number, since it is smaller than the sum of its proper divisors (65490610964).

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

64119078364 is a wasteful number, since it uses less digits than its factorization.

64119078364 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85720725 (or 85720723 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 49.

The spelling of 64119078364 in words is "sixty-four billion, one hundred nineteen million, seventy-eight thousand, three hundred sixty-four".