75916523394 has 24 divisors (see below), whose sum is σ = 165994849020. Its totient is φ = 25073346528.

The previous prime is 75916523393. The next prime is 75916523489. The reversal of 75916523394 is 49332561957.

75916523394 is a `hidden beast` number, since 75 + 9 + 16 + 523 + 39 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 74258975025 + 1657548369 = 272505^2 + 40713^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 75916523394.

It is not an unprimeable number, because it can be changed into a prime (75916523393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19344757 + ... + 19348680.

Almost surely, 2^75916523394 is an apocalyptic number.

75916523394 is an abundant number, since it is smaller than the sum of its proper divisors (90078325626).

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

75916523394 is a wasteful number, since it uses less digits than its factorization.

75916523394 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38693554 (or 38693551 counting only the distinct ones).

The product of its digits is 6123600, while the sum is 54.

The spelling of 75916523394 in words is "seventy-five billion, nine hundred sixteen million, five hundred twenty-three thousand, three hundred ninety-four".