74450188897 has 32 divisors (see below), whose sum is σ = 88638278400. Its totient is φ = 61182148608.

The previous prime is 74450188889. The next prime is 74450188913. The reversal of 74450188897 is 79888105447.

It is not a de Polignac number, because 74450188897 - 2³ = 74450188889 is a prime.

It is not an unprimeable number, because it can be changed into a prime (74450188097) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41895673 + ... + 41897449.

It is an arithmetic number, because the mean of its divisors is an integer number (2769946200).

Almost surely, 2^74450188897 is an apocalyptic number.

It is an amenable number.

74450188897 is a deficient number, since it is larger than the sum of its proper divisors (14188089503).

74450188897 is a wasteful number, since it uses less digits than its factorization.

74450188897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3145.

The product of its (nonzero) digits is 18063360, while the sum is 61.

The spelling of 74450188897 in words is "seventy-four billion, four hundred fifty million, one hundred eighty-eight thousand, eight hundred ninety-seven".