75515157142 has 8 divisors (see below), whose sum is σ = 113280021000. Its totient is φ = 37755150144.

The previous prime is 75515157127. The next prime is 75515157161. The reversal of 75515157142 is 24175151557.

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

It is a congruent number.

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, 1175092 + ... + 1237687.

It is an arithmetic number, because the mean of its divisors is an integer number (14160002625).

Almost surely, 2^75515157142 is an apocalyptic number.

75515157142 is a deficient number, since it is larger than the sum of its proper divisors (37764863858).

75515157142 is a wasteful number, since it uses less digits than its factorization.

75515157142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428430.

The product of its digits is 245000, while the sum is 43.

The spelling of 75515157142 in words is "seventy-five billion, five hundred fifteen million, one hundred fifty-seven thousand, one hundred forty-two".