6391248934 has 16 divisors (see below), whose sum is σ = 10957909536. Its totient is φ = 2738736000.

The previous prime is 6391248887. The next prime is 6391248989. The reversal of 6391248934 is 4398421936.

It is a super-2 number, since 2×6391248934² = 81696125872712272712, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93534 + ... + 146734.

It is an arithmetic number, because the mean of its divisors is an integer number (684869346).

Almost surely, 2^6391248934 is an apocalyptic number.

6391248934 is a deficient number, since it is larger than the sum of its proper divisors (4566660602).

6391248934 is a wasteful number, since it uses less digits than its factorization.

6391248934 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61791.

The product of its digits is 1119744, while the sum is 49.

The square root of 6391248934 is about 79945.2871281353. The cubic root of 6391248934 is about 1855.7889214086.

The spelling of 6391248934 in words is "six billion, three hundred ninety-one million, two hundred forty-eight thousand, nine hundred thirty-four".