75998391481 has 8 divisors (see below), whose sum is σ = 79314772680. Its totient is φ = 72728393472.

The previous prime is 75998391473. The next prime is 75998391503. The reversal of 75998391481 is 18419389957.

It can be written as a sum of positive squares in 4 ways, for example, as 4232803600 + 71765587881 = 65060^2 + 267891^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75998391481 - 2³ = 75998391473 is a prime.

It is a super-2 number, since 2×75998391481² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75998391461) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11592450 + ... + 11599003.

It is an arithmetic number, because the mean of its divisors is an integer number (9914346585).

Almost surely, 2^75998391481 is an apocalyptic number.

It is an amenable number.

75998391481 is a deficient number, since it is larger than the sum of its proper divisors (3316381199).

75998391481 is a wasteful number, since it uses less digits than its factorization.

75998391481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23191595.

The product of its digits is 19595520, while the sum is 64.

The spelling of 75998391481 in words is "seventy-five billion, nine hundred ninety-eight million, three hundred ninety-one thousand, four hundred eighty-one".