75312242761 has 4 divisors (see below), whose sum is σ = 86071134592. Its totient is φ = 64553350932.

The previous prime is 75312242749. The next prime is 75312242767. The reversal of 75312242761 is 16724221357.

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 not a de Polignac number, because 75312242761 - 2¹⁵ = 75312209993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75312242767) 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, 5379445905 + ... + 5379445918.

It is an arithmetic number, because the mean of its divisors is an integer number (21517783648).

Almost surely, 2^75312242761 is an apocalyptic number.

It is an amenable number.

75312242761 is a deficient number, since it is larger than the sum of its proper divisors (10758891831).

75312242761 is a wasteful number, since it uses less digits than its factorization.

75312242761 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10758891830.

The product of its digits is 141120, while the sum is 40.

The spelling of 75312242761 in words is "seventy-five billion, three hundred twelve million, two hundred forty-two thousand, seven hundred sixty-one".