74163895042778 has 8 divisors (see below), whose sum is σ = 111246171114900. Its totient is φ = 37081838004480.

The previous prime is 74163895042759. The next prime is 74163895042789. The reversal of 74163895042778 is 87724059836147.

It can be written as a sum of positive squares in 2 ways, for example, as 57013719852049 + 17150175190729 = 7550743^2 + 4141277^2 .

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, 53909333 + ... + 55267928.

It is a 2-persistent number, because it is pandigital, and so is 2⋅74163895042778 = 148327790085556, but 3⋅74163895042778 = 222491685128334 is not.

Almost surely, 2^{74163895042778} is an apocalyptic number.

74163895042778 is a deficient number, since it is larger than the sum of its proper divisors (37082276072122).

74163895042778 is a wasteful number, since it uses less digits than its factorization.

74163895042778 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109516912.

The product of its (nonzero) digits is 568995840, while the sum is 71.

The spelling of 74163895042778 in words is "seventy-four trillion, one hundred sixty-three billion, eight hundred ninety-five million, forty-two thousand, seven hundred seventy-eight".