75289399508 has 6 divisors (see below), whose sum is σ = 131756449146. Its totient is φ = 37644699752.

The previous prime is 75289399483. The next prime is 75289399513. The reversal of 75289399508 is 80599398257.

It can be written as a sum of positive squares in only one way, i.e., 43072021444 + 32217378064 = 207538^2 + 179492^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9411174935 + ... + 9411174942.

It is an arithmetic number, because the mean of its divisors is an integer number (21959408191).

Almost surely, 2^75289399508 is an apocalyptic number.

It is an amenable number.

75289399508 is a deficient number, since it is larger than the sum of its proper divisors (56467049638).

75289399508 is a wasteful number, since it uses less digits than its factorization.

75289399508 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18822349881 (or 18822349879 counting only the distinct ones).

The product of its (nonzero) digits is 48988800, while the sum is 65.

The spelling of 75289399508 in words is "seventy-five billion, two hundred eighty-nine million, three hundred ninety-nine thousand, five hundred eight".