64120306025 has 12 divisors (see below), whose sum is σ = 79570902300. Its totient is φ = 51256423680.

The previous prime is 64120305989. The next prime is 64120306027. The reversal of 64120306025 is 52060302146.

It can be written as a sum of positive squares in 6 ways, for example, as 872079961 + 63248226064 = 29531^2 + 251492^2 .

It is not a de Polignac number, because 64120306025 - 2²⁴ = 64103528809 is a prime.

It is a super-2 number, since 2×64120306025² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (64120306027) 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 11 ways as a sum of consecutive naturals, for example, 962660 + ... + 1027109.

It is an arithmetic number, because the mean of its divisors is an integer number (6630908525).

Almost surely, 2^64120306025 is an apocalyptic number.

It is an amenable number.

64120306025 is a deficient number, since it is larger than the sum of its proper divisors (15450596275).

64120306025 is a wasteful number, since it uses less digits than its factorization.

64120306025 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1991068 (or 1991063 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

The spelling of 64120306025 in words is "sixty-four billion, one hundred twenty million, three hundred six thousand, twenty-five".