7794351664 has 80 divisors (see below), whose sum is σ = 16651005696. Its totient is φ = 3505132800.

The previous prime is 7794351647. The next prime is 7794351679. The reversal of 7794351664 is 4661534977.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8593099 + ... + 8594005.

Almost surely, 2^7794351664 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 7794351664, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (8325502848).

7794351664 is an abundant number, since it is smaller than the sum of its proper divisors (8856654032).

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

7794351664 is a wasteful number, since it uses less digits than its factorization.

7794351664 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1394 (or 1388 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 52.

The square root of 7794351664 is about 88285.6254664371. The cubic root of 7794351664 is about 1982.7136603526.

The spelling of 7794351664 in words is "seven billion, seven hundred ninety-four million, three hundred fifty-one thousand, six hundred sixty-four".