75412145242 has 16 divisors (see below), whose sum is σ = 130025238912. Its totient is φ = 32132671920.

The previous prime is 75412145239. The next prime is 75412145267. The reversal of 75412145242 is 24254121457.

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, 15565734 + ... + 15570577.

It is an arithmetic number, because the mean of its divisors is an integer number (8126577432).

Almost surely, 2^75412145242 is an apocalyptic number.

75412145242 is a deficient number, since it is larger than the sum of its proper divisors (54613093670).

75412145242 is a wasteful number, since it uses less digits than its factorization.

75412145242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31136493.

The product of its digits is 89600, while the sum is 37.

Adding to 75412145242 its reverse (24254121457), we get a palindrome (99666266699).

The spelling of 75412145242 in words is "seventy-five billion, four hundred twelve million, one hundred forty-five thousand, two hundred forty-two".