64584968194 has 8 divisors (see below), whose sum is σ = 96878694780. Its totient is φ = 32292069936.

The previous prime is 64584968179. The next prime is 64584968297. The reversal of 64584968194 is 49186948546.

It can be written as a sum of positive squares in 2 ways, for example, as 54679742569 + 9905225625 = 233837^2 + 99525^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

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, 53352 + ... + 363340.

Almost surely, 2^64584968194 is an apocalyptic number.

64584968194 is a deficient number, since it is larger than the sum of its proper divisors (32293726586).

64584968194 is a wasteful number, since it uses less digits than its factorization.

64584968194 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414164.

The product of its digits is 59719680, while the sum is 64.

The spelling of 64584968194 in words is "sixty-four billion, five hundred eighty-four million, nine hundred sixty-eight thousand, one hundred ninety-four".