19100011000920 has 64 divisors (see below), whose sum is σ = 57303695082240. Its totient is φ = 5093010748800.

The previous prime is 19100011000831. The next prime is 19100011000933. The reversal of 19100011000920 is 2900011000191.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3197866 + ... + 6958905.

It is an arithmetic number, because the mean of its divisors is an integer number (895370235660).

Almost surely, 2^{19100011000920} is an apocalyptic number.

19100011000920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19100011000920 is an abundant number, since it is smaller than the sum of its proper divisors (38203684081320).

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

19100011000920 is a wasteful number, since it uses less digits than its factorization.

19100011000920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10172456 (or 10172452 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 24.

The spelling of 19100011000920 in words is "nineteen trillion, one hundred billion, eleven million, nine hundred twenty", and thus it is an aban number.