75436747040642 has 8 divisors (see below), whose sum is σ = 121859360604156. Its totient is φ = 34816960172592.

The previous prime is 75436747040639. The next prime is 75436747040723. The reversal of 75436747040642 is 24604074763457.

It can be written as a sum of positive squares in 2 ways, for example, as 71418369981721 + 4018377058921 = 8450939^2 + 2004589^2 .

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

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, 1450706673833 + ... + 1450706673884.

Almost surely, 2^{75436747040642} is an apocalyptic number.

75436747040642 is a deficient number, since it is larger than the sum of its proper divisors (46422613563514).

75436747040642 is a wasteful number, since it uses less digits than its factorization.

75436747040642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2901413347732.

The product of its (nonzero) digits is 94832640, while the sum is 59.

The spelling of 75436747040642 in words is "seventy-five trillion, four hundred thirty-six billion, seven hundred forty-seven million, forty thousand, six hundred forty-two".