7617491913 has 16 divisors (see below), whose sum is σ = 10820033280. Its totient is φ = 4753080144.

The previous prime is 7617491867. The next prime is 7617491977. The reversal of 7617491913 is 3191947167.

It is not a de Polignac number, because 7617491913 - 2⁸ = 7617491657 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7617491983) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 800331 + ... + 809792.

It is an arithmetic number, because the mean of its divisors is an integer number (676252080).

Almost surely, 2^7617491913 is an apocalyptic number.

It is an amenable number.

7617491913 is a deficient number, since it is larger than the sum of its proper divisors (3202541367).

7617491913 is a wasteful number, since it uses less digits than its factorization.

7617491913 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610228.

The product of its digits is 285768, while the sum is 48.

The square root of 7617491913 is about 87278.2442135496. The cubic root of 7617491913 is about 1967.6023561536.

The spelling of 7617491913 in words is "seven billion, six hundred seventeen million, four hundred ninety-one thousand, nine hundred thirteen".