190538701836 has 72 divisors (see below), whose sum is σ = 516570163200. Its totient is φ = 53547088320.

The previous prime is 190538701831. The next prime is 190538701849. The reversal of 190538701836 is 638107835091.

190538701836 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (190538701831) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7765 + ... + 617363.

It is an arithmetic number, because the mean of its divisors is an integer number (7174585600).

Almost surely, 2^190538701836 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 190538701836, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (258285081600).

190538701836 is an abundant number, since it is smaller than the sum of its proper divisors (326031461364).

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

190538701836 is a wasteful number, since it uses less digits than its factorization.

190538701836 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 609735 (or 609672 counting only the distinct ones).

The product of its (nonzero) digits is 1088640, while the sum is 51.

The spelling of 190538701836 in words is "one hundred ninety billion, five hundred thirty-eight million, seven hundred one thousand, eight hundred thirty-six".