7650208957 has 4 divisors (see below), whose sum is σ = 7660262556. Its totient is φ = 7640155360.

The previous prime is 7650208949. The next prime is 7650208967. The reversal of 7650208957 is 7598020567.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1261244196 + 6388964761 = 35514^2 + 79931^2 .

It is a cyclic number.

It is not a de Polignac number, because 7650208957 - 2³ = 7650208949 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 7650208957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7650208967) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5025658 + ... + 5027179.

It is an arithmetic number, because the mean of its divisors is an integer number (1915065639).

Almost surely, 2^7650208957 is an apocalyptic number.

It is an amenable number.

7650208957 is a deficient number, since it is larger than the sum of its proper divisors (10053599).

7650208957 is a wasteful number, since it uses less digits than its factorization.

7650208957 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10053598.

The product of its (nonzero) digits is 1058400, while the sum is 49.

The square root of 7650208957 is about 87465.4729421844. The cubic root of 7650208957 is about 1970.4152763296.

The spelling of 7650208957 in words is "seven billion, six hundred fifty million, two hundred eight thousand, nine hundred fifty-seven".