75931042138 has 8 divisors (see below), whose sum is σ = 130167500832. Its totient is φ = 32541875196.

The previous prime is 75931042129. The next prime is 75931042193. The reversal of 75931042138 is 83124013957.

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

It is a super-2 number, since 2×75931042138² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 75931042094 and 75931042103.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2711822920 + ... + 2711822947.

It is an arithmetic number, because the mean of its divisors is an integer number (16270937604).

Almost surely, 2^75931042138 is an apocalyptic number.

75931042138 is a deficient number, since it is larger than the sum of its proper divisors (54236458694).

75931042138 is a wasteful number, since it uses less digits than its factorization.

75931042138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5423645876.

The product of its (nonzero) digits is 181440, while the sum is 43.

The spelling of 75931042138 in words is "seventy-five billion, nine hundred thirty-one million, forty-two thousand, one hundred thirty-eight".