64675709412 has 48 divisors (see below), whose sum is σ = 153805804992. Its totient is φ = 21145138560.

The previous prime is 64675709411. The next prime is 64675709419. The reversal of 64675709412 is 21490757646.

It is a happy number.

64675709412 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (64675709411) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2256918 + ... + 2285394.

It is an arithmetic number, because the mean of its divisors is an integer number (3204287604).

Almost surely, 2^64675709412 is an apocalyptic number.

It is an amenable number.

64675709412 is an abundant number, since it is smaller than the sum of its proper divisors (89130095580).

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

64675709412 is a wasteful number, since it uses less digits than its factorization.

64675709412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32108 (or 32106 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 51.

The spelling of 64675709412 in words is "sixty-four billion, six hundred seventy-five million, seven hundred nine thousand, four hundred twelve".