7688917245 has 32 divisors (see below), whose sum is σ = 12959539200. Its totient is φ = 3881991744.

The previous prime is 7688917241. The next prime is 7688917279. The reversal of 7688917245 is 5427198867.

It is not a de Polignac number, because 7688917245 - 2² = 7688917241 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7688917241) 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, 396076 + ... + 415034.

It is an arithmetic number, because the mean of its divisors is an integer number (404985600).

Almost surely, 2^7688917245 is an apocalyptic number.

It is an amenable number.

7688917245 is a deficient number, since it is larger than the sum of its proper divisors (5270621955).

7688917245 is a wasteful number, since it uses less digits than its factorization.

7688917245 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20409.

The product of its digits is 6773760, while the sum is 57.

The square root of 7688917245 is about 87686.4712769307. The cubic root of 7688917245 is about 1973.7329688814.

The spelling of 7688917245 in words is "seven billion, six hundred eighty-eight million, nine hundred seventeen thousand, two hundred forty-five".