6942815251851 has 16 divisors (see below), whose sum is σ = 9284425173248. Its totient is φ = 4614893287200.

The previous prime is 6942815251849. The next prime is 6942815251859. The reversal of 6942815251851 is 1581525182496.

6942815251851 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 6942815251851 - 2¹ = 6942815251849 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 6942815251791 and 6942815251800.

It is not an unprimeable number, because it can be changed into a prime (6942815251859) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 886135 + ... + 3830256.

It is an arithmetic number, because the mean of its divisors is an integer number (580276573328).

Almost surely, 2^{6942815251851} is an apocalyptic number.

6942815251851 is a deficient number, since it is larger than the sum of its proper divisors (2341609921397).

6942815251851 is a wasteful number, since it uses less digits than its factorization.

6942815251851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4717842.

The product of its digits is 6912000, while the sum is 57.

The spelling of 6942815251851 in words is "six trillion, nine hundred forty-two billion, eight hundred fifteen million, two hundred fifty-one thousand, eight hundred fifty-one".