75446387056 has 20 divisors (see below), whose sum is σ = 154776044592. Its totient is φ = 35504182016.

The previous prime is 75446387041. The next prime is 75446387087. The reversal of 75446387056 is 65078364457.

It is a junction number, because it is equal to n+sod(n) for n = 75446386988 and 75446387006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 138687940 + ... + 138688483.

Almost surely, 2^75446387056 is an apocalyptic number.

It is an amenable number.

75446387056 is an abundant number, since it is smaller than the sum of its proper divisors (79329657536).

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

75446387056 is a wasteful number, since it uses less digits than its factorization.

75446387056 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277376448 (or 277376442 counting only the distinct ones).

The product of its (nonzero) digits is 16934400, while the sum is 55.

The spelling of 75446387056 in words is "seventy-five billion, four hundred forty-six million, three hundred eighty-seven thousand, fifty-six".