64818974000 has 240 divisors, whose sum is σ = 176310694560. Its totient is φ = 23018688000.

The previous prime is 64818973987. The next prime is 64818974021. The reversal of 64818974000 is 47981846.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10402886 + ... + 10409114.

It is an arithmetic number, because the mean of its divisors is an integer number (734627894).

Almost surely, 2^64818974000 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 64818974000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (88155347280).

64818974000 is an abundant number, since it is smaller than the sum of its proper divisors (111491720560).

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

64818974000 is a wasteful number, since it uses less digits than its factorization.

64818974000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6317 (or 6290 counting only the distinct ones).

The product of its (nonzero) digits is 387072, while the sum is 47.

The spelling of 64818974000 in words is "sixty-four billion, eight hundred eighteen million, nine hundred seventy-four thousand".