75798113508 has 72 divisors (see below), whose sum is σ = 213454495800. Its totient is φ = 22518268416.

The previous prime is 75798113477. The next prime is 75798113569. The reversal of 75798113508 is 80531189757.

It is a happy number.

75798113508 is a `hidden beast` number, since 7 + 57 + 9 + 81 + 1 + 3 + 508 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 437981184 + 75360132324 = 20928^2 + 274518^2 .

It is a super-2 number, since 2×75798113508² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2778873 + ... + 2806016.

It is an arithmetic number, because the mean of its divisors is an integer number (2964645775).

Almost surely, 2^75798113508 is an apocalyptic number.

75798113508 is a gapful number since it is divisible by the number (78) formed by its first and last digit.

It is an amenable number.

75798113508 is an abundant number, since it is smaller than the sum of its proper divisors (137656382292).

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

75798113508 is a wasteful number, since it uses less digits than its factorization.

75798113508 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5584941 (or 5584936 counting only the distinct ones).

The product of its (nonzero) digits is 2116800, while the sum is 54.

The spelling of 75798113508 in words is "seventy-five billion, seven hundred ninety-eight million, one hundred thirteen thousand, five hundred eight".