190136921722 has 16 divisors (see below), whose sum is σ = 311263466400. Its totient is φ = 86389673040.

The previous prime is 190136921713. The next prime is 190136921729. The reversal of 190136921722 is 227129631091.

It is not an unprimeable number, because it can be changed into a prime (190136921729) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1756272 + ... + 1861387.

It is an arithmetic number, because the mean of its divisors is an integer number (19453966650).

Almost surely, 2^190136921722 is an apocalyptic number.

190136921722 is a deficient number, since it is larger than the sum of its proper divisors (121126544678).

190136921722 is a wasteful number, since it uses less digits than its factorization.

190136921722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3620061.

The product of its (nonzero) digits is 81648, while the sum is 43.

The spelling of 190136921722 in words is "one hundred ninety billion, one hundred thirty-six million, nine hundred twenty-one thousand, seven hundred twenty-two".