190126691988 has 24 divisors (see below), whose sum is σ = 448973877408. Its totient is φ = 62612002656.

The previous prime is 190126691977. The next prime is 190126692013. The reversal of 190126691988 is 889196621091.

It is a super-2 number, since 2×190126691988² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 95444131 + ... + 95446122.

It is an arithmetic number, because the mean of its divisors is an integer number (18707244892).

Almost surely, 2^190126691988 is an apocalyptic number.

It is an amenable number.

190126691988 is an abundant number, since it is smaller than the sum of its proper divisors (258847185420).

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

190126691988 is a wasteful number, since it uses less digits than its factorization.

190126691988 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190890343 (or 190890341 counting only the distinct ones).

The product of its (nonzero) digits is 3359232, while the sum is 60.

The spelling of 190126691988 in words is "one hundred ninety billion, one hundred twenty-six million, six hundred ninety-one thousand, nine hundred eighty-eight".