75571434128 has 80 divisors (see below), whose sum is σ = 149551142400. Its totient is φ = 36987525120.

The previous prime is 75571434101. The next prime is 75571434137. The reversal of 75571434128 is 82143417557.

It is a super-2 number, since 2×75571434128² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 93412988 + ... + 93413796.

It is an arithmetic number, because the mean of its divisors is an integer number (1869389280).

Almost surely, 2^75571434128 is an apocalyptic number.

It is an amenable number.

75571434128 is a deficient number, since it is larger than the sum of its proper divisors (73979708272).

75571434128 is a wasteful number, since it uses less digits than its factorization.

75571434128 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1440 (or 1434 counting only the distinct ones).

The product of its digits is 940800, while the sum is 47.

The spelling of 75571434128 in words is "seventy-five billion, five hundred seventy-one million, four hundred thirty-four thousand, one hundred twenty-eight".