10091821195 has 8 divisors (see below), whose sum is σ = 12111540336. Its totient is φ = 8072553696.

The previous prime is 10091821183. The next prime is 10091821211. The reversal of 10091821195 is 59112819001.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 10091821195 - 2¹⁹ = 10091296907 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61632 + ... + 154861.

It is an arithmetic number, because the mean of its divisors is an integer number (1513942542).

Almost surely, 2^10091821195 is an apocalyptic number.

10091821195 is a deficient number, since it is larger than the sum of its proper divisors (2019719141).

10091821195 is an equidigital number, since it uses as much as digits as its factorization.

10091821195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225821.

The product of its (nonzero) digits is 6480, while the sum is 37.

The spelling of 10091821195 in words is "ten billion, ninety-one million, eight hundred twenty-one thousand, one hundred ninety-five".