75216442742 has 16 divisors (see below), whose sum is σ = 129007676160. Its totient is φ = 32219317608.

The previous prime is 75216442669. The next prime is 75216442759. The reversal of 75216442742 is 24724461257.

It is a junction number, because it is equal to n+sod(n) for n = 75216442693 and 75216442702.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1329698 + ... + 1385109.

It is an arithmetic number, because the mean of its divisors is an integer number (8062979760).

Almost surely, 2^75216442742 is an apocalyptic number.

75216442742 is a deficient number, since it is larger than the sum of its proper divisors (53791233418).

75216442742 is a wasteful number, since it uses less digits than its factorization.

75216442742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2716795.

The product of its digits is 752640, while the sum is 44.

The spelling of 75216442742 in words is "seventy-five billion, two hundred sixteen million, four hundred forty-two thousand, seven hundred forty-two".