64213777032 has 16 divisors (see below), whose sum is σ = 160534442640. Its totient is φ = 21404592336.

The previous prime is 64213777021. The next prime is 64213777049. The reversal of 64213777032 is 23077731246.

It is a happy number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 1337786998 + ... + 1337787045.

It is an arithmetic number, because the mean of its divisors is an integer number (10033402665).

Almost surely, 2^64213777032 is an apocalyptic number.

It is an amenable number.

64213777032 is an abundant number, since it is smaller than the sum of its proper divisors (96320665608).

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

64213777032 is a wasteful number, since it uses less digits than its factorization.

64213777032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2675574052 (or 2675574048 counting only the distinct ones).

The product of its (nonzero) digits is 296352, while the sum is 42.

The spelling of 64213777032 in words is "sixty-four billion, two hundred thirteen million, seven hundred seventy-seven thousand, thirty-two".