6493867931 has 4 divisors (see below), whose sum is σ = 6494166600. Its totient is φ = 6493569264.

The previous prime is 6493867901. The next prime is 6493867951. The reversal of 6493867931 is 1397683946.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 6493867931 - 2¹⁴ = 6493851547 is a prime.

It is a super-2 number, since 2×6493867931² = 84340641410540441522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (6493867901) 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, 113921 + ... + 161138.

It is an arithmetic number, because the mean of its divisors is an integer number (1623541650).

Almost surely, 2^6493867931 is an apocalyptic number.

6493867931 is a deficient number, since it is larger than the sum of its proper divisors (298669).

6493867931 is a wasteful number, since it uses less digits than its factorization.

6493867931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 298668.

The product of its digits is 5878656, while the sum is 56.

The square root of 6493867931 is about 80584.5390320004. The cubic root of 6493867931 is about 1865.6685215570.

The spelling of 6493867931 in words is "six billion, four hundred ninety-three million, eight hundred sixty-seven thousand, nine hundred thirty-one".