75087998739 has 48 divisors (see below), whose sum is σ = 119239382080. Its totient is φ = 45251032320.

The previous prime is 75087998693. The next prime is 75087998743. The reversal of 75087998739 is 93789978057.

75087998739 is a `hidden beast` number, since 7 + 508 + 7 + 9 + 9 + 87 + 39 = 666.

It is not a de Polignac number, because 75087998739 - 2¹² = 75087994643 is a prime.

It is not an unprimeable number, because it can be changed into a prime (75087998749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1611402 + ... + 1657344.

Almost surely, 2^75087998739 is an apocalyptic number.

75087998739 is a deficient number, since it is larger than the sum of its proper divisors (44151383341).

75087998739 is a wasteful number, since it uses less digits than its factorization.

75087998739 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46252 (or 46249 counting only the distinct ones).

The product of its (nonzero) digits is 240045120, while the sum is 72.

The spelling of 75087998739 in words is "seventy-five billion, eighty-seven million, nine hundred ninety-eight thousand, seven hundred thirty-nine".