7903764992 has 30 divisors (see below), whose sum is σ = 15796113333. Its totient is φ = 3950876672.

The previous prime is 7903764977. The next prime is 7903764997. The reversal of 7903764992 is 2994673097.

It is a powerful number, because all its prime factors have an exponent greater than 1 and also an Achilles number because it is not a perfect power.

It can be written as a sum of positive squares in 2 ways, for example, as 6708265216 + 1195499776 = 81904^2 + 34576^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=62864.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7903764997) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 2009684 + ... + 2013612.

Almost surely, 2^7903764992 is an apocalyptic number.

It is an amenable number.

7903764992 is a deficient number, since it is larger than the sum of its proper divisors (7892348341).

7903764992 is an frugal number, since it uses more digits than its factorization.

7903764992 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7876 (or 3931 counting only the distinct ones).

The product of its (nonzero) digits is 5143824, while the sum is 56.

The square root of 7903764992 is about 88903.1213850222. The cubic root of 7903764992 is about 1991.9480424936.

The spelling of 7903764992 in words is "seven billion, nine hundred three million, seven hundred sixty-four thousand, nine hundred ninety-two".