75920205913 has 4 divisors (see below), whose sum is σ = 75959524368. Its totient is φ = 75880887460.

The previous prime is 75920205887. The next prime is 75920205929. The reversal of 75920205913 is 31950202957.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-75920205913 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 75920205913.

It is not an unprimeable number, because it can be changed into a prime (75920205943) 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, 19656331 + ... + 19660192.

It is an arithmetic number, because the mean of its divisors is an integer number (18989881092).

Almost surely, 2^75920205913 is an apocalyptic number.

It is an amenable number.

75920205913 is a deficient number, since it is larger than the sum of its proper divisors (39318455).

75920205913 is a wasteful number, since it uses less digits than its factorization.

75920205913 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39318454.

The product of its (nonzero) digits is 170100, while the sum is 43.

The spelling of 75920205913 in words is "seventy-five billion, nine hundred twenty million, two hundred five thousand, nine hundred thirteen".