75736790691 has 4 divisors (see below), whose sum is σ = 100982387592. Its totient is φ = 50491193792.

The previous prime is 75736790621. The next prime is 75736790743. The reversal of 75736790691 is 19609763757.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75736790691 is a prime.

It is a super-2 number, since 2×75736790691² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (75736790621) 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 3 ways as a sum of consecutive naturals, for example, 12622798446 + ... + 12622798451.

It is an arithmetic number, because the mean of its divisors is an integer number (25245596898).

Almost surely, 2^75736790691 is an apocalyptic number.

75736790691 is a deficient number, since it is larger than the sum of its proper divisors (25245596901).

75736790691 is a wasteful number, since it uses less digits than its factorization.

75736790691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25245596900.

The product of its (nonzero) digits is 15002820, while the sum is 60.

The spelling of 75736790691 in words is "seventy-five billion, seven hundred thirty-six million, seven hundred ninety thousand, six hundred ninety-one".