64252525772 has 24 divisors (see below), whose sum is σ = 112671369216. Its totient is φ = 32060749968.

The previous prime is 64252525747. The next prime is 64252525783. The reversal of 64252525772 is 27752525246.

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, 10881773 + ... + 10887675.

It is an arithmetic number, because the mean of its divisors is an integer number (4694640384).

Almost surely, 2^64252525772 is an apocalyptic number.

It is an amenable number.

64252525772 is a deficient number, since it is larger than the sum of its proper divisors (48418843444).

64252525772 is a wasteful number, since it uses less digits than its factorization.

64252525772 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10997 (or 10995 counting only the distinct ones).

The product of its digits is 2352000, while the sum is 47.

The spelling of 64252525772 in words is "sixty-four billion, two hundred fifty-two million, five hundred twenty-five thousand, seven hundred seventy-two".