199019765590780 has 12 divisors (see below), whose sum is σ = 417941507740680. Its totient is φ = 79607906236304.

The previous prime is 199019765590739. The next prime is 199019765590799. The reversal of 199019765590780 is 87095567910991.

It is a junction number, because it is equal to n+sod(n) for n = 199019765590697 and 199019765590706.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4975494139750 + ... + 4975494139789.

It is an arithmetic number, because the mean of its divisors is an integer number (34828458978390).

Almost surely, 2^{199019765590780} is an apocalyptic number.

199019765590780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

199019765590780 is an abundant number, since it is smaller than the sum of its proper divisors (218921742149900).

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

199019765590780 is a wasteful number, since it uses less digits than its factorization.

199019765590780 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9950988279548 (or 9950988279546 counting only the distinct ones).

The product of its (nonzero) digits is 385786800, while the sum is 76.

The spelling of 199019765590780 in words is "one hundred ninety-nine trillion, nineteen billion, seven hundred sixty-five million, five hundred ninety thousand, seven hundred eighty".