190001274426 has 80 divisors (see below), whose sum is σ = 427234737600. Its totient is φ = 63112338432.

The previous prime is 190001274409. The next prime is 190001274431. The reversal of 190001274426 is 624472100091.

It is a happy number.

190001274426 is a `hidden beast` number, since 1 + 90 + 0 + 0 + 127 + 442 + 6 = 666.

It is a super-2 number, since 2×190001274426² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 101117355 + ... + 101119233.

It is an arithmetic number, because the mean of its divisors is an integer number (5340434220).

Almost surely, 2^190001274426 is an apocalyptic number.

190001274426 is an abundant number, since it is smaller than the sum of its proper divisors (237233463174).

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

190001274426 is a wasteful number, since it uses less digits than its factorization.

190001274426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3745 (or 3736 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 190001274426 in words is "one hundred ninety billion, one million, two hundred seventy-four thousand, four hundred twenty-six".