6810137685 has 96 divisors (see below), whose sum is σ = 13146701568. Its totient is φ = 3239792640.

The previous prime is 6810137671. The next prime is 6810137699. The reversal of 6810137685 is 5867310186.

It is an interprime number because it is at equal distance from previous prime (6810137671) and next prime (6810137699).

It is not a de Polignac number, because 6810137685 - 2⁴ = 6810137669 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 6810137685.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 2438640 + ... + 2441430.

It is an arithmetic number, because the mean of its divisors is an integer number (136944808).

Almost surely, 2^6810137685 is an apocalyptic number.

6810137685 is a gapful number since it is divisible by the number (65) formed by its first and last digit.

It is an amenable number.

6810137685 is a deficient number, since it is larger than the sum of its proper divisors (6336563883).

6810137685 is a wasteful number, since it uses less digits than its factorization.

6810137685 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2955 (or 2952 counting only the distinct ones).

The product of its (nonzero) digits is 241920, while the sum is 45.

The square root of 6810137685 is about 82523.5583636576. The cubic root of 6810137685 is about 1895.4774879726.

The spelling of 6810137685 in words is "six billion, eight hundred ten million, one hundred thirty-seven thousand, six hundred eighty-five".