64941725904 has 160 divisors (see below), whose sum is σ = 189112086528. Its totient is φ = 19025280000.

The previous prime is 64941725851. The next prime is 64941725909. The reversal of 64941725904 is 40952714946.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64941725909) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29477667 + ... + 29479869.

Almost surely, 2^64941725904 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64941725904, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (94556043264).

64941725904 is an abundant number, since it is smaller than the sum of its proper divisors (124170360624).

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

64941725904 is a wasteful number, since it uses less digits than its factorization.

64941725904 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4057 (or 4051 counting only the distinct ones).

The product of its (nonzero) digits is 2177280, while the sum is 51.

The spelling of 64941725904 in words is "sixty-four billion, nine hundred forty-one million, seven hundred twenty-five thousand, nine hundred four".