74422000189 has 4 divisors (see below), whose sum is σ = 78799764924. Its totient is φ = 70044235456.

The previous prime is 74422000183. The next prime is 74422000193. The reversal of 74422000189 is 98100022447.

74422000189 = T₂₂₂₇₄₂ + T₂₂₂₇₄₃ + T₂₂₂₇₄₄.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24085488025 + 50336512164 = 155195^2 + 224358^2 .

It is a cyclic number.

It is not a de Polignac number, because 74422000189 - 2⁵ = 74422000157 is a prime.

It is a super-2 number, since 2×74422000189² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (74422000183) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2188882342 + ... + 2188882375.

It is an arithmetic number, because the mean of its divisors is an integer number (19699941231).

Almost surely, 2^74422000189 is an apocalyptic number.

74422000189 is the 222744-th centered triangular number.

It is an amenable number.

74422000189 is a deficient number, since it is larger than the sum of its proper divisors (4377764735).

74422000189 is a wasteful number, since it uses less digits than its factorization.

74422000189 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4377764734.

The product of its (nonzero) digits is 32256, while the sum is 37.

The spelling of 74422000189 in words is "seventy-four billion, four hundred twenty-two million, one hundred eighty-nine", and thus it is an aban number.