6253687491 has 8 divisors (see below), whose sum is σ = 8374662480. Its totient is φ = 4150918752.

The previous prime is 6253687469. The next prime is 6253687501. The reversal of 6253687491 is 1947863526.

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

It is not a de Polignac number, because 6253687491 - 2²¹ = 6251590339 is a prime.

It is not an unprimeable number, because it can be changed into a prime (6253680491) 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, 4550760 + ... + 4552133.

It is an arithmetic number, because the mean of its divisors is an integer number (1046832810).

Almost surely, 2^6253687491 is an apocalyptic number.

6253687491 is a deficient number, since it is larger than the sum of its proper divisors (2120974989).

6253687491 is a wasteful number, since it uses less digits than its factorization.

6253687491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9103125.

The product of its digits is 2177280, while the sum is 51.

The square root of 6253687491 is about 79080.2598060983. The cubic root of 6253687491 is about 1842.3779403120.

The spelling of 6253687491 in words is "six billion, two hundred fifty-three million, six hundred eighty-seven thousand, four hundred ninety-one".