75797968878 has 12 divisors (see below), whose sum is σ = 164228932608. Its totient is φ = 25265989620.

The previous prime is 75797968871. The next prime is 75797968913. The reversal of 75797968878 is 87886979757.

It is a junction number, because it is equal to n+sod(n) for n = 75797968797 and 75797968806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75797968871) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2105499118 + ... + 2105499153.

It is an arithmetic number, because the mean of its divisors is an integer number (13685744384).

Almost surely, 2^75797968878 is an apocalyptic number.

75797968878 is an abundant number, since it is smaller than the sum of its proper divisors (88430963730).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

75797968878 is a wasteful number, since it uses less digits than its factorization.

75797968878 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4210998279 (or 4210998276 counting only the distinct ones).

The product of its digits is 2987228160, while the sum is 81.

The spelling of 75797968878 in words is "seventy-five billion, seven hundred ninety-seven million, nine hundred sixty-eight thousand, eight hundred seventy-eight".