64151207772 has 24 divisors (see below), whose sum is σ = 149721171600. Its totient is φ = 21378733056.

The previous prime is 64151207749. The next prime is 64151207807. The reversal of 64151207772 is 27770215146.

It is a congruent number.

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, 571747 + ... + 674682.

It is an arithmetic number, because the mean of its divisors is an integer number (6238382150).

Almost surely, 2^64151207772 is an apocalyptic number.

It is an amenable number.

64151207772 is an abundant number, since it is smaller than the sum of its proper divisors (85569963828).

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

64151207772 is a wasteful number, since it uses less digits than its factorization.

64151207772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1250725 (or 1250723 counting only the distinct ones).

The product of its (nonzero) digits is 164640, while the sum is 42.

The spelling of 64151207772 in words is "sixty-four billion, one hundred fifty-one million, two hundred seven thousand, seven hundred seventy-two".