7491620697 has 32 divisors (see below), whose sum is σ = 11398302720. Its totient is φ = 4332419520.

The previous prime is 7491620687. The next prime is 7491620699. The reversal of 7491620697 is 7960261947.

It is not a de Polignac number, because 7491620697 - 2⁴ = 7491620681 is a prime.

It is a super-2 number, since 2×7491620697² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (7491620699) 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, 306243 + ... + 329799.

It is an arithmetic number, because the mean of its divisors is an integer number (356196960).

Almost surely, 2^7491620697 is an apocalyptic number.

It is an amenable number.

7491620697 is a deficient number, since it is larger than the sum of its proper divisors (3906682023).

7491620697 is a wasteful number, since it uses less digits than its factorization.

7491620697 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24013.

The product of its (nonzero) digits is 1143072, while the sum is 51.

The square root of 7491620697 is about 86554.1489300195. The cubic root of 7491620697 is about 1956.7045742209.

The spelling of 7491620697 in words is "seven billion, four hundred ninety-one million, six hundred twenty thousand, six hundred ninety-seven".