7904777553 has 16 divisors (see below), whose sum is σ = 11737475200. Its totient is φ = 5257839600.

The previous prime is 7904777533. The next prime is 7904777557. The reversal of 7904777553 is 3557774097.

It is not a de Polignac number, because 7904777553 - 2²⁰ = 7903728977 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 7904777553.

It is not an unprimeable number, because it can be changed into a prime (7904777557) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 321598 + ... + 345303.

It is an arithmetic number, because the mean of its divisors is an integer number (733592200).

Almost surely, 2^7904777553 is an apocalyptic number.

It is an amenable number.

7904777553 is a deficient number, since it is larger than the sum of its proper divisors (3832697647).

7904777553 is a wasteful number, since it uses less digits than its factorization.

7904777553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 667349 (or 667343 counting only the distinct ones).

The product of its (nonzero) digits is 6482700, while the sum is 54.

The square root of 7904777553 is about 88908.8159464516. The cubic root of 7904777553 is about 1992.0331024946.

The spelling of 7904777553 in words is "seven billion, nine hundred four million, seven hundred seventy-seven thousand, five hundred fifty-three".