75673662691 has 12 divisors (see below), whose sum is σ = 88071343416. Its totient is φ = 64747517120.

The previous prime is 75673662689. The next prime is 75673662709. The reversal of 75673662691 is 19626637657.

It is a happy number.

It is not a de Polignac number, because 75673662691 - 2¹ = 75673662689 is a prime.

It is a super-2 number, since 2×75673662691² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75673662611) 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 11 ways as a sum of consecutive naturals, for example, 18392125 + ... + 18396238.

It is an arithmetic number, because the mean of its divisors is an integer number (7339278618).

Almost surely, 2^75673662691 is an apocalyptic number.

75673662691 is a deficient number, since it is larger than the sum of its proper divisors (12397680725).

75673662691 is a wasteful number, since it uses less digits than its factorization.

75673662691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36788402 (or 36788391 counting only the distinct ones).

The product of its digits is 17146080, while the sum is 58.

The spelling of 75673662691 in words is "seventy-five billion, six hundred seventy-three million, six hundred sixty-two thousand, six hundred ninety-one".