1000091909100 has 72 divisors (see below), whose sum is σ = 2993378567760. Its totient is φ = 257494926080.

The previous prime is 1000091909087. The next prime is 1000091909153. The reversal of 1000091909100 is 19091900001.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 57467847 + ... + 57485246.

It is an arithmetic number, because the mean of its divisors is an integer number (41574702330).

Almost surely, 2^{1000091909100} is an apocalyptic number.

1000091909100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1000091909100 is an abundant number, since it is smaller than the sum of its proper divisors (1993286658660).

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

1000091909100 is a wasteful number, since it uses less digits than its factorization.

1000091909100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 114953139 (or 114953132 counting only the distinct ones).

The product of its (nonzero) digits is 729, while the sum is 30.

The spelling of 1000091909100 in words is "one trillion, ninety-one million, nine hundred nine thousand, one hundred".