75818745901 has 4 divisors (see below), whose sum is σ = 75819798432. Its totient is φ = 75817693372.

The previous prime is 75818745829. The next prime is 75818745913. The reversal of 75818745901 is 10954781857.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10954781857 = 26227 ⋅417691.

It is a cyclic number.

It is not a de Polignac number, because 75818745901 - 2⁷ = 75818745773 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 (75818745941) 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, 409591 + ... + 565156.

It is an arithmetic number, because the mean of its divisors is an integer number (18954949608).

Almost surely, 2^75818745901 is an apocalyptic number.

It is an amenable number.

75818745901 is a deficient number, since it is larger than the sum of its proper divisors (1052531).

75818745901 is an equidigital number, since it uses as much as digits as its factorization.

75818745901 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1052530.

The product of its (nonzero) digits is 2822400, while the sum is 55.

The spelling of 75818745901 in words is "seventy-five billion, eight hundred eighteen million, seven hundred forty-five thousand, nine hundred one".