75978815352 has 64 divisors (see below), whose sum is σ = 212815382400. Its totient is φ = 22401613440.

The previous prime is 75978815351. The next prime is 75978815357. The reversal of 75978815352 is 25351887957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75978815351) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3879402 + ... + 3898937.

It is an arithmetic number, because the mean of its divisors is an integer number (3325240350).

Almost surely, 2^75978815352 is an apocalyptic number.

It is an amenable number.

75978815352 is an abundant number, since it is smaller than the sum of its proper divisors (136836567048).

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

75978815352 is a wasteful number, since it uses less digits than its factorization.

75978815352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7778396 (or 7778392 counting only the distinct ones).

The product of its digits is 21168000, while the sum is 60.

The spelling of 75978815352 in words is "seventy-five billion, nine hundred seventy-eight million, eight hundred fifteen thousand, three hundred fifty-two".