6851361015 has 24 divisors (see below), whose sum is σ = 11877627840. Its totient is φ = 3653463744.

The previous prime is 6851361001. The next prime is 6851361071. The reversal of 6851361015 is 5101631586.

It is not a de Polignac number, because 6851361015 - 2⁶ = 6851360951 is a prime.

It is a super-2 number, since 2×6851361015² = 93882295515723660450, 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 23 ways as a sum of consecutive naturals, for example, 493509 + ... + 507201.

It is an arithmetic number, because the mean of its divisors is an integer number (494901160).

Almost surely, 2^6851361015 is an apocalyptic number.

6851361015 is a deficient number, since it is larger than the sum of its proper divisors (5026266825).

6851361015 is a wasteful number, since it uses less digits than its factorization.

6851361015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24823 (or 24820 counting only the distinct ones).

The product of its (nonzero) digits is 21600, while the sum is 36.

The square root of 6851361015 is about 82772.9485701700. The cubic root of 6851361015 is about 1899.2943838739.

The spelling of 6851361015 in words is "six billion, eight hundred fifty-one million, three hundred sixty-one thousand, fifteen".