75087998740 has 12 divisors (see below), whose sum is σ = 157684797396. Its totient is φ = 30035199488.

The previous prime is 75087998693. The next prime is 75087998743. The reversal of 75087998740 is 4789978057.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 24565546756 + 50522451984 = 156734^2 + 224772^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75087998743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1877199949 + ... + 1877199988.

It is an arithmetic number, because the mean of its divisors is an integer number (13140399783).

Almost surely, 2^75087998740 is an apocalyptic number.

It is an amenable number.

75087998740 is an abundant number, since it is smaller than the sum of its proper divisors (82596798656).

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

75087998740 is a wasteful number, since it uses less digits than its factorization.

75087998740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3754399946 (or 3754399944 counting only the distinct ones).

The product of its (nonzero) digits is 35562240, while the sum is 64.

The spelling of 75087998740 in words is "seventy-five billion, eighty-seven million, nine hundred ninety-eight thousand, seven hundred forty".