75481604436 has 24 divisors (see below), whose sum is σ = 201284278720. Its totient is φ = 21566172672.

The previous prime is 75481604389. The next prime is 75481604483. The reversal of 75481604436 is 63440618457.

It is an interprime number because it is at equal distance from previous prime (75481604389) and next prime (75481604483).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 449295181 + ... + 449295348.

Almost surely, 2^75481604436 is an apocalyptic number.

It is an amenable number.

75481604436 is an abundant number, since it is smaller than the sum of its proper divisors (125802674284).

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

75481604436 is a wasteful number, since it uses less digits than its factorization.

75481604436 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898590543 (or 898590541 counting only the distinct ones).

The product of its (nonzero) digits is 1935360, while the sum is 48.

The spelling of 75481604436 in words is "seventy-five billion, four hundred eighty-one million, six hundred four thousand, four hundred thirty-six".