75505344772 has 60 divisors (see below), whose sum is σ = 156160959696. Its totient is φ = 31680036960.

The previous prime is 75505344769. The next prime is 75505344847. The reversal of 75505344772 is 27744350557.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1226643 + ... + 1286725.

Almost surely, 2^75505344772 is an apocalyptic number.

It is an amenable number.

75505344772 is an abundant number, since it is smaller than the sum of its proper divisors (80655614924).

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

75505344772 is a wasteful number, since it uses less digits than its factorization.

75505344772 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60150 (or 60109 counting only the distinct ones).

The product of its (nonzero) digits is 4116000, while the sum is 49.

The spelling of 75505344772 in words is "seventy-five billion, five hundred five million, three hundred forty-four thousand, seven hundred seventy-two".