7792749561 has 32 divisors (see below), whose sum is σ = 11344572288. Its totient is φ = 4738176000.

The previous prime is 7792749553. The next prime is 7792749581. The reversal of 7792749561 is 1659472977.

It is a happy number.

It is not a de Polignac number, because 7792749561 - 2³ = 7792749553 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7792749581) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 465411 + ... + 481863.

It is an arithmetic number, because the mean of its divisors is an integer number (354517884).

Almost surely, 2^7792749561 is an apocalyptic number.

It is an amenable number.

7792749561 is a deficient number, since it is larger than the sum of its proper divisors (3551822727).

7792749561 is a wasteful number, since it uses less digits than its factorization.

7792749561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16761.

The product of its digits is 6667920, while the sum is 57.

The square root of 7792749561 is about 88276.5515921414. The cubic root of 7792749561 is about 1982.5778043162.

The spelling of 7792749561 in words is "seven billion, seven hundred ninety-two million, seven hundred forty-nine thousand, five hundred sixty-one".