794122658640 has 480 divisors, whose sum is σ = 2833714630656. Its totient is φ = 206615162880.

The previous prime is 794122658627. The next prime is 794122658663. The reversal of 794122658640 is 46856221497.

794122658640 is a `hidden beast` number, since 7 + 9 + 4 + 12 + 2 + 6 + 586 + 40 = 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 95 ways as a sum of consecutive naturals, for example, 150599044 + ... + 150604316.

Almost surely, 2^794122658640 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 794122658640, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1416857315328).

794122658640 is an abundant number, since it is smaller than the sum of its proper divisors (2039591972016).

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

794122658640 is a wasteful number, since it uses less digits than its factorization.

794122658640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5489 (or 5471 counting only the distinct ones).

The product of its (nonzero) digits is 5806080, while the sum is 54.

The spelling of 794122658640 in words is "seven hundred ninety-four billion, one hundred twenty-two million, six hundred fifty-eight thousand, six hundred forty".