64765153172 has 24 divisors (see below), whose sum is σ = 114251741184. Its totient is φ = 32121889632.

The previous prime is 64765153171. The next prime is 64765153207. The reversal of 64765153172 is 27135156746.

It is a super-3 number, since 3×64765153172³ (a number of 33 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (64765153171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5321318 + ... + 5333474.

It is an arithmetic number, because the mean of its divisors is an integer number (4760489216).

Almost surely, 2^64765153172 is an apocalyptic number.

It is an amenable number.

64765153172 is a deficient number, since it is larger than the sum of its proper divisors (49486588012).

64765153172 is a wasteful number, since it uses less digits than its factorization.

64765153172 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22775 (or 22773 counting only the distinct ones).

The product of its digits is 1058400, while the sum is 47.

The spelling of 64765153172 in words is "sixty-four billion, seven hundred sixty-five million, one hundred fifty-three thousand, one hundred seventy-two".