6931452491 has 8 divisors (see below), whose sum is σ = 7328412480. Its totient is φ = 6537707208.

The previous prime is 6931452443. The next prime is 6931452589. The reversal of 6931452491 is 1942541396.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6931452491 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6931452191) 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, 799241 + ... + 807866.

It is an arithmetic number, because the mean of its divisors is an integer number (916051560).

Almost surely, 2^6931452491 is an apocalyptic number.

6931452491 is a deficient number, since it is larger than the sum of its proper divisors (396959989).

6931452491 is a wasteful number, since it uses less digits than its factorization.

6931452491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1607353.

The product of its digits is 233280, while the sum is 44.

The square root of 6931452491 is about 83255.3451196979. The cubic root of 6931452491 is about 1906.6665622640. Note that the first 3 decimals are identical.

The spelling of 6931452491 in words is "six billion, nine hundred thirty-one million, four hundred fifty-two thousand, four hundred ninety-one".