19091092900 has 72 divisors (see below), whose sum is σ = 46046677824. Its totient is φ = 6811209600.

The previous prime is 19091092879. The next prime is 19091092907. The reversal of 19091092900 is 929019091.

It is not an unprimeable number, because it can be changed into a prime (19091092907) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 105432 + ... + 222031.

It is an arithmetic number, because the mean of its divisors is an integer number (639537192).

Almost surely, 2^19091092900 is an apocalyptic number.

19091092900 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19091092900 is an abundant number, since it is smaller than the sum of its proper divisors (26955584924).

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

19091092900 is a wasteful number, since it uses less digits than its factorization.

19091092900 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327541 (or 327534 counting only the distinct ones).

The product of its (nonzero) digits is 13122, while the sum is 40.

The spelling of 19091092900 in words is "nineteen billion, ninety-one million, ninety-two thousand, nine hundred".