64690482206824 has 8 divisors (see below), whose sum is σ = 121294654137810. Its totient is φ = 32345241103408.

The previous prime is 64690482206773. The next prime is 64690482206897. The reversal of 64690482206824 is 42860228409646.

It can be written as a sum of positive squares in only one way, i.e., 55302275902500 + 9388206304324 = 7436550^2 + 3064018^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×64690482206824² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4043155137919 + ... + 4043155137934.

Almost surely, 2^{64690482206824} is an apocalyptic number.

It is an amenable number.

64690482206824 is a deficient number, since it is larger than the sum of its proper divisors (56604171930986).

64690482206824 is a wasteful number, since it uses less digits than its factorization.

64690482206824 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8086310275859 (or 8086310275855 counting only the distinct ones).

The product of its (nonzero) digits is 63700992, while the sum is 61.

The spelling of 64690482206824 in words is "sixty-four trillion, six hundred ninety billion, four hundred eighty-two million, two hundred six thousand, eight hundred twenty-four".