64506937682 has 32 divisors (see below), whose sum is σ = 111950553600. Its totient is φ = 27550990080.

The previous prime is 64506937657. The next prime is 64506937709. The reversal of 64506937682 is 28673960546.

It is a happy number.

It is a super-2 number, since 2×64506937682² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 84944 + ... + 369092.

It is an arithmetic number, because the mean of its divisors is an integer number (3498454800).

Almost surely, 2^64506937682 is an apocalyptic number.

64506937682 is a deficient number, since it is larger than the sum of its proper divisors (47443615918).

64506937682 is a wasteful number, since it uses less digits than its factorization.

64506937682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284786.

The product of its (nonzero) digits is 13063680, while the sum is 56.

The spelling of 64506937682 in words is "sixty-four billion, five hundred six million, nine hundred thirty-seven thousand, six hundred eighty-two".