190491374322 has 90 divisors (see below), whose sum is σ = 435720803133. Its totient is φ = 62202776688.

The previous prime is 190491374309. The next prime is 190491374377. The reversal of 190491374322 is 223473194091.

190491374322 is a `hidden beast` number, since 1 + 90 + 491 + 3 + 74 + 3 + 2 + 2 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 180692156241 + 9799218081 = 425079^2 + 98991^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=308619.

It is an unprimeable number.

It is a polite number, since it can be written in 44 ways as a sum of consecutive naturals, for example, 294422203 + ... + 294422849.

Almost surely, 2^190491374322 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190491374322

190491374322 is an abundant number, since it is smaller than the sum of its proper divisors (245229428811).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

190491374322 is an frugal number, since it uses more digits than its factorization.

190491374322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1414 (or 705 counting only the distinct ones).

The product of its (nonzero) digits is 326592, while the sum is 45.

The spelling of 190491374322 in words is "one hundred ninety billion, four hundred ninety-one million, three hundred seventy-four thousand, three hundred twenty-two".