7801204992 has 144 divisors (see below), whose sum is σ = 23948158080. Its totient is φ = 2208301056.

The previous prime is 7801204981. The next prime is 7801205051. The reversal of 7801204992 is 2994021087.

It is a Harshad number since it is a multiple of its sum of digits (42).

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, 579328 + ... + 592640.

Almost surely, 2^7801204992 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 7801204992, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11974079040).

7801204992 is an abundant number, since it is smaller than the sum of its proper divisors (16146953088).

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

7801204992 is a wasteful number, since it uses less digits than its factorization.

7801204992 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13448 (or 13434 counting only the distinct ones).

The product of its (nonzero) digits is 72576, while the sum is 42.

The square root of 7801204992 is about 88324.4303236653. The cubic root of 7801204992 is about 1983.2946026819.

The spelling of 7801204992 in words is "seven billion, eight hundred one million, two hundred four thousand, nine hundred ninety-two".