7951688541 has 8 divisors (see below), whose sum is σ = 11780279360. Its totient is φ = 5301125676.

The previous prime is 7951688533. The next prime is 7951688557. The reversal of 7951688541 is 1458861597.

It is a happy number.

7951688541 is a `hidden beast` number, since 7 + 9 + 5 + 16 + 88 + 541 = 666.

It is not a de Polignac number, because 7951688541 - 2³ = 7951688533 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7951688531) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147253465 + ... + 147253518.

It is an arithmetic number, because the mean of its divisors is an integer number (1472534920).

Almost surely, 2^7951688541 is an apocalyptic number.

It is an amenable number.

7951688541 is a deficient number, since it is larger than the sum of its proper divisors (3828590819).

7951688541 is a wasteful number, since it uses less digits than its factorization.

7951688541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294506992 (or 294506986 counting only the distinct ones).

The product of its digits is 2419200, while the sum is 54.

The square root of 7951688541 is about 89172.2408656416. The cubic root of 7951688541 is about 1995.9659136277.

The spelling of 7951688541 in words is "seven billion, nine hundred fifty-one million, six hundred eighty-eight thousand, five hundred forty-one".