190247637906 has 24 divisors (see below), whose sum is σ = 433898122320. Its totient is φ = 60078201336.

The previous prime is 190247637871. The next prime is 190247637907. The reversal of 190247637906 is 609736742091.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (190247637907) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 278139480 + ... + 278140163.

It is an arithmetic number, because the mean of its divisors is an integer number (18079088430).

Almost surely, 2^190247637906 is an apocalyptic number.

190247637906 is an abundant number, since it is smaller than the sum of its proper divisors (243650484414).

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

190247637906 is a wasteful number, since it uses less digits than its factorization.

190247637906 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 556279670 (or 556279667 counting only the distinct ones).

The product of its (nonzero) digits is 3429216, while the sum is 54.

The spelling of 190247637906 in words is "one hundred ninety billion, two hundred forty-seven million, six hundred thirty-seven thousand, nine hundred six".