75780431272 has 64 divisors (see below), whose sum is σ = 177744873600. Its totient is φ = 29487594240.

The previous prime is 75780431267. The next prime is 75780431291. The reversal of 75780431272 is 27213408757.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 808822 + ... + 897637.

It is an arithmetic number, because the mean of its divisors is an integer number (2777263650).

Almost surely, 2^75780431272 is an apocalyptic number.

It is an amenable number.

75780431272 is an abundant number, since it is smaller than the sum of its proper divisors (101964442328).

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

75780431272 is a wasteful number, since it uses less digits than its factorization.

75780431272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1706546 (or 1706542 counting only the distinct ones).

The product of its (nonzero) digits is 658560, while the sum is 46.

The spelling of 75780431272 in words is "seventy-five billion, seven hundred eighty million, four hundred thirty-one thousand, two hundred seventy-two".