75681851137 has 12 divisors (see below), whose sum is σ = 79887689856. Its totient is φ = 71686982520.

The previous prime is 75681851131. The next prime is 75681851143. The reversal of 75681851137 is 73115818657.

It is an interprime number because it is at equal distance from previous prime (75681851131) and next prime (75681851143).

It is not a de Polignac number, because 75681851137 - 2³ = 75681851129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75681851131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2915148 + ... + 2940994.

It is an arithmetic number, because the mean of its divisors is an integer number (6657307488).

Almost surely, 2^75681851137 is an apocalyptic number.

It is an amenable number.

75681851137 is a deficient number, since it is larger than the sum of its proper divisors (4205838719).

75681851137 is a wasteful number, since it uses less digits than its factorization.

75681851137 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33996 (or 33977 counting only the distinct ones).

The product of its digits is 1411200, while the sum is 52.

The spelling of 75681851137 in words is "seventy-five billion, six hundred eighty-one million, eight hundred fifty-one thousand, one hundred thirty-seven".