64980873474 has 64 divisors (see below), whose sum is σ = 150192766080. Its totient is φ = 18523422720.

The previous prime is 64980873469. The next prime is 64980873493. The reversal of 64980873474 is 47437808946.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2357082 + ... + 2384490.

It is an arithmetic number, because the mean of its divisors is an integer number (2346761970).

Almost surely, 2^64980873474 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64980873474, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (75096383040).

64980873474 is an abundant number, since it is smaller than the sum of its proper divisors (85211892606).

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

64980873474 is a wasteful number, since it uses less digits than its factorization.

64980873474 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29555.

The product of its (nonzero) digits is 32514048, while the sum is 60.

The spelling of 64980873474 in words is "sixty-four billion, nine hundred eighty million, eight hundred seventy-three thousand, four hundred seventy-four".