7920791955 has 40 divisors (see below), whose sum is σ = 14205752352. Its totient is φ = 4222340352.

The previous prime is 7920791941. The next prime is 7920791969. The reversal of 7920791955 is 5591970297.

It is an interprime number because it is at equal distance from previous prime (7920791941) and next prime (7920791969).

It is not a de Polignac number, because 7920791955 - 2¹⁰ = 7920790931 is a prime.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1172347 + ... + 1179083.

Almost surely, 2^7920791955 is an apocalyptic number.

7920791955 is a deficient number, since it is larger than the sum of its proper divisors (6284960397).

7920791955 is a wasteful number, since it uses less digits than its factorization.

7920791955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9657 (or 9648 counting only the distinct ones).

The product of its (nonzero) digits is 1786050, while the sum is 54.

The square root of 7920791955 is about 88998.8312001905. The cubic root of 7920791955 is about 1993.3774245351.

The spelling of 7920791955 in words is "seven billion, nine hundred twenty million, seven hundred ninety-one thousand, nine hundred fifty-five".