7952426291 has 4 divisors (see below), whose sum is σ = 7952618112. Its totient is φ = 7952234472.

The previous prime is 7952426281. The next prime is 7952426299. The reversal of 7952426291 is 1926242597.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1926242597 = 6427 ⋅299711.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-7952426291 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (7952426299) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5000 + ... + 126213.

It is an arithmetic number, because the mean of its divisors is an integer number (1988154528).

Almost surely, 2^7952426291 is an apocalyptic number.

7952426291 is a deficient number, since it is larger than the sum of its proper divisors (191821).

7952426291 is a wasteful number, since it uses less digits than its factorization.

7952426291 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191820.

The product of its digits is 544320, while the sum is 47.

The square root of 7952426291 is about 89176.3774269846. The cubic root of 7952426291 is about 1996.0276396502.

The spelling of 7952426291 in words is "seven billion, nine hundred fifty-two million, four hundred twenty-six thousand, two hundred ninety-one".