75477251368 has 16 divisors (see below), whose sum is σ = 142421248980. Its totient is φ = 37498251648.

The previous prime is 75477251359. The next prime is 75477251383. The reversal of 75477251368 is 86315277457.

It can be written as a sum of positive squares in 2 ways, for example, as 59847751044 + 15629500324 = 244638^2 + 125018^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 30045421 + ... + 30047932.

Almost surely, 2^75477251368 is an apocalyptic number.

It is an amenable number.

75477251368 is a deficient number, since it is larger than the sum of its proper divisors (66943997612).

75477251368 is a wasteful number, since it uses less digits than its factorization.

75477251368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60093516 (or 60093512 counting only the distinct ones).

The product of its digits is 9878400, while the sum is 55.

The spelling of 75477251368 in words is "seventy-five billion, four hundred seventy-seven million, two hundred fifty-one thousand, three hundred sixty-eight".