7556791641 has 32 divisors (see below), whose sum is σ = 11565331200. Its totient is φ = 4299386880.

The previous prime is 7556791639. The next prime is 7556791643. The reversal of 7556791641 is 1461976557.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (7556791639) and next prime (7556791643).

It is not a de Polignac number, because 7556791641 - 2¹ = 7556791639 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7556791643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8133865 + ... + 8134793.

It is an arithmetic number, because the mean of its divisors is an integer number (361416600).

Almost surely, 2^7556791641 is an apocalyptic number.

It is an amenable number.

7556791641 is a deficient number, since it is larger than the sum of its proper divisors (4008539559).

7556791641 is a wasteful number, since it uses less digits than its factorization.

7556791641 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2209.

The product of its digits is 1587600, while the sum is 51.

The square root of 7556791641 is about 86929.8087021937. The cubic root of 7556791641 is about 1962.3621078064.

The spelling of 7556791641 in words is "seven billion, five hundred fifty-six million, seven hundred ninety-one thousand, six hundred forty-one".