75723138851 has 4 divisors (see below), whose sum is σ = 78334281600. Its totient is φ = 73111996104.

The previous prime is 75723138787. The next prime is 75723138917. The reversal of 75723138851 is 15883132757.

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

It is a cyclic number.

It is not a de Polignac number, because 75723138851 - 2⁶ = 75723138787 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75723138851.

It is not an unprimeable number, because it can be changed into a prime (75723138551) 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, 1305571331 + ... + 1305571388.

It is an arithmetic number, because the mean of its divisors is an integer number (19583570400).

Almost surely, 2^75723138851 is an apocalyptic number.

75723138851 is a deficient number, since it is larger than the sum of its proper divisors (2611142749).

75723138851 is a wasteful number, since it uses less digits than its factorization.

75723138851 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2611142748.

The product of its digits is 1411200, while the sum is 50.

The spelling of 75723138851 in words is "seventy-five billion, seven hundred twenty-three million, one hundred thirty-eight thousand, eight hundred fifty-one".