64352771512 has 16 divisors (see below), whose sum is σ = 120674642400. Its totient is φ = 32172866880.

The previous prime is 64352771471. The next prime is 64352771521. The reversal of 64352771512 is 21517725346.

It is a happy number.

It is a super-2 number, since 2×64352771512² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 361312 + ... + 509167.

It is an arithmetic number, because the mean of its divisors is an integer number (7542165150).

Almost surely, 2^64352771512 is an apocalyptic number.

It is an amenable number.

64352771512 is a deficient number, since it is larger than the sum of its proper divisors (56321870888).

64352771512 is a wasteful number, since it uses less digits than its factorization.

64352771512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 879726 (or 879722 counting only the distinct ones).

The product of its digits is 352800, while the sum is 43.

The spelling of 64352771512 in words is "sixty-four billion, three hundred fifty-two million, seven hundred seventy-one thousand, five hundred twelve".