190629191850 has 24 divisors (see below), whose sum is σ = 472760396160. Its totient is φ = 50834451120.

The previous prime is 190629191849. The next prime is 190629191867. The reversal of 190629191850 is 58191926091.

It is a junction number, because it is equal to n+sod(n) for n = 190629191793 and 190629191802.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 635430490 + ... + 635430789.

It is an arithmetic number, because the mean of its divisors is an integer number (19698349840).

Almost surely, 2^190629191850 is an apocalyptic number.

190629191850 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

190629191850 is an abundant number, since it is smaller than the sum of its proper divisors (282131204310).

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

190629191850 is a wasteful number, since it uses less digits than its factorization.

190629191850 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1270861294 (or 1270861289 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 51.

The spelling of 190629191850 in words is "one hundred ninety billion, six hundred twenty-nine million, one hundred ninety-one thousand, eight hundred fifty".