64793073744 has 320 divisors, whose sum is σ = 224933222400. Its totient is φ = 17444118528.

The previous prime is 64793073733. The next prime is 64793073773. The reversal of 64793073744 is 44737039746.

64793073744 is a `hidden beast` number, since 6 + 479 + 30 + 73 + 74 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 11086087 + ... + 11091929.

It is an arithmetic number, because the mean of its divisors is an integer number (702916320).

Almost surely, 2^64793073744 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 64793073744, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (112466611200).

64793073744 is an abundant number, since it is smaller than the sum of its proper divisors (160140148656).

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

64793073744 is a wasteful number, since it uses less digits than its factorization.

64793073744 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6079 (or 6067 counting only the distinct ones).

The product of its (nonzero) digits is 10668672, while the sum is 54.

The spelling of 64793073744 in words is "sixty-four billion, seven hundred ninety-three million, seventy-three thousand, seven hundred forty-four".