190188342390 has 32 divisors (see below), whose sum is σ = 468788565600. Its totient is φ = 49346164224.

The previous prime is 190188342361. The next prime is 190188342437. The reversal of 190188342390 is 93243881091.

190188342390 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 85669315 + ... + 85671534.

It is an arithmetic number, because the mean of its divisors is an integer number (14649642675).

Almost surely, 2^190188342390 is an apocalyptic number.

190188342390 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190188342390 is an abundant number, since it is smaller than the sum of its proper divisors (278600223210).

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

190188342390 is a wasteful number, since it uses less digits than its factorization.

190188342390 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 171340896.

The product of its (nonzero) digits is 373248, while the sum is 48.

The spelling of 190188342390 in words is "one hundred ninety billion, one hundred eighty-eight million, three hundred forty-two thousand, three hundred ninety".