75700138765 has 8 divisors (see below), whose sum is σ = 92554132248. Its totient is φ = 59417467200.

The previous prime is 75700138757. The next prime is 75700138769. The reversal of 75700138765 is 56783100757.

It can be written as a sum of positive squares in 4 ways, for example, as 23315457636 + 52384681129 = 152694^2 + 228877^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 75700138765 - 2³ = 75700138757 is a prime.

It is a super-2 number, since 2×75700138765² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75700138769) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 142830186 + ... + 142830715.

It is an arithmetic number, because the mean of its divisors is an integer number (11569266531).

Almost surely, 2^75700138765 is an apocalyptic number.

It is an amenable number.

75700138765 is a deficient number, since it is larger than the sum of its proper divisors (16853993483).

75700138765 is a wasteful number, since it uses less digits than its factorization.

75700138765 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 285660959.

The product of its (nonzero) digits is 1234800, while the sum is 49.

The spelling of 75700138765 in words is "seventy-five billion, seven hundred million, one hundred thirty-eight thousand, seven hundred sixty-five".