75777918873 has 4 divisors (see below), whose sum is σ = 101037225168. Its totient is φ = 50518612580.

The previous prime is 75777918851. The next prime is 75777918901. The reversal of 75777918873 is 37881977757.

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 not a de Polignac number, because 75777918873 - 2⁸ = 75777918617 is a prime.

It is a super-3 number, since 3×75777918873³ (a number of 34 digits) contains 333 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 75777918798 and 75777918807.

It is not an unprimeable number, because it can be changed into a prime (75777918803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12629653143 + ... + 12629653148.

It is an arithmetic number, because the mean of its divisors is an integer number (25259306292).

Almost surely, 2^75777918873 is an apocalyptic number.

It is an amenable number.

75777918873 is a deficient number, since it is larger than the sum of its proper divisors (25259306295).

75777918873 is a wasteful number, since it uses less digits than its factorization.

75777918873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25259306294.

The product of its digits is 145212480, while the sum is 69.

The spelling of 75777918873 in words is "seventy-five billion, seven hundred seventy-seven million, nine hundred eighteen thousand, eight hundred seventy-three".