6251272491 has 8 divisors (see below), whose sum is σ = 8337713104. Its totient is φ = 4166173440.

The previous prime is 6251272471. The next prime is 6251272529. The reversal of 6251272491 is 1942721526.

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

It is a de Polignac number, because none of the positive numbers 2^k-6251272491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6251272471) 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, 324466 + ... + 343191.

It is an arithmetic number, because the mean of its divisors is an integer number (1042214138).

Almost surely, 2^6251272491 is an apocalyptic number.

6251272491 is a deficient number, since it is larger than the sum of its proper divisors (2086440613).

6251272491 is a wasteful number, since it uses less digits than its factorization.

6251272491 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670781.

The product of its digits is 60480, while the sum is 39.

The square root of 6251272491 is about 79064.9890343381. The cubic root of 6251272491 is about 1842.1407514218.

The spelling of 6251272491 in words is "six billion, two hundred fifty-one million, two hundred seventy-two thousand, four hundred ninety-one".