19105139195700 has 144 divisors (see below), whose sum is σ = 59669904631680. Its totient is φ = 4705153671680.

The previous prime is 19105139195651. The next prime is 19105139195789. The reversal of 19105139195700 is 759193150191.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47538879 + ... + 47939078.

It is an arithmetic number, because the mean of its divisors is an integer number (414374337720).

Almost surely, 2^{19105139195700} is an apocalyptic number.

19105139195700 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19105139195700 is an abundant number, since it is smaller than the sum of its proper divisors (40564765435980).

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

19105139195700 is a wasteful number, since it uses less digits than its factorization.

19105139195700 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95478026 (or 95478019 counting only the distinct ones).

The product of its (nonzero) digits is 382725, while the sum is 51.

The spelling of 19105139195700 in words is "nineteen trillion, one hundred five billion, one hundred thirty-nine million, one hundred ninety-five thousand, seven hundred".