6899734131 has 8 divisors (see below), whose sum is σ = 9212199120. Its totient is φ = 4593545952.

The previous prime is 6899734129. The next prime is 6899734133. The reversal of 6899734131 is 1314379986.

It is an interprime number because it is at equal distance from previous prime (6899734129) and next prime (6899734133).

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

It is not a de Polignac number, because 6899734131 - 2¹ = 6899734129 is a prime.

It is a super-2 number, since 2×6899734131² = 95212662156972650322, which contains 22 as substring.

It is a Smith number, since the sum of its digits (51) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is not an unprimeable number, because it can be changed into a prime (6899734133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1566636 + ... + 1571033.

It is an arithmetic number, because the mean of its divisors is an integer number (1151524890).

Almost surely, 2^6899734131 is an apocalyptic number.

6899734131 is a deficient number, since it is larger than the sum of its proper divisors (2312464989).

6899734131 is a wasteful number, since it uses less digits than its factorization.

6899734131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3138405.

The product of its digits is 979776, while the sum is 51.

The square root of 6899734131 is about 83064.6382704457. The cubic root of 6899734131 is about 1903.7538096868.

The spelling of 6899734131 in words is "six billion, eight hundred ninety-nine million, seven hundred thirty-four thousand, one hundred thirty-one".