64272004780 has 24 divisors (see below), whose sum is σ = 136209482640. Its totient is φ = 25472940480.

The previous prime is 64272004717. The next prime is 64272004781. The reversal of 64272004780 is 8740027246.

It is not an unprimeable number, because it can be changed into a prime (64272004781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14739106 + ... + 14743465.

It is an arithmetic number, because the mean of its divisors is an integer number (5675395110).

Almost surely, 2^64272004780 is an apocalyptic number.

It is an amenable number.

64272004780 is an abundant number, since it is smaller than the sum of its proper divisors (71937477860).

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

64272004780 is a wasteful number, since it uses less digits than its factorization.

64272004780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29482689 (or 29482687 counting only the distinct ones).

The product of its (nonzero) digits is 150528, while the sum is 40.

The spelling of 64272004780 in words is "sixty-four billion, two hundred seventy-two million, four thousand, seven hundred eighty".