7901794944 has 160 divisors (see below), whose sum is σ = 23571615540. Its totient is φ = 2627665920.

The previous prime is 7901794937. The next prime is 7901795009. The reversal of 7901794944 is 4494971097.

It can be written as a sum of positive squares in 2 ways, for example, as 7157160000 + 744634944 = 84600^2 + 27288^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 6852672 + ... + 6853824.

Almost surely, 2^7901794944 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 7901794944, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11785807770).

7901794944 is an abundant number, since it is smaller than the sum of its proper divisors (15669820596).

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

7901794944 is a wasteful number, since it uses less digits than its factorization.

7901794944 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1840 (or 1819 counting only the distinct ones).

The product of its (nonzero) digits is 2286144, while the sum is 54.

The square root of 7901794944 is about 88892.0409485574. The cubic root of 7901794944 is about 1991.7825281532.

The spelling of 7901794944 in words is "seven billion, nine hundred one million, seven hundred ninety-four thousand, nine hundred forty-four".