75305816823 has 4 divisors (see below), whose sum is σ = 100407755768. Its totient is φ = 50203877880.

The previous prime is 75305816809. The next prime is 75305816837. The reversal of 75305816823 is 32861850357.

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

It is an interprime number because it is at equal distance from previous prime (75305816809) and next prime (75305816837).

It is not a de Polignac number, because 75305816823 - 2⁵ = 75305816791 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75305818823) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12550969468 + ... + 12550969473.

It is an arithmetic number, because the mean of its divisors is an integer number (25101938942).

Almost surely, 2^75305816823 is an apocalyptic number.

75305816823 is a deficient number, since it is larger than the sum of its proper divisors (25101938945).

75305816823 is a wasteful number, since it uses less digits than its factorization.

75305816823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25101938944.

The product of its (nonzero) digits is 1209600, while the sum is 48.

The spelling of 75305816823 in words is "seventy-five billion, three hundred five million, eight hundred sixteen thousand, eight hundred twenty-three".