191929200001 has 24 divisors (see below), whose sum is σ = 243659322720. Its totient is φ = 149495068800.

The previous prime is 191929199989. The next prime is 191929200013. The reversal of 191929200001 is 100002929191.

It is an interprime number because it is at equal distance from previous prime (191929199989) and next prime (191929200013).

It is not a de Polignac number, because 191929200001 - 2²⁷ = 191794982273 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 191929200001.

It is not an unprimeable number, because it can be changed into a prime (191929200401) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1293865 + ... + 1434553.

It is an arithmetic number, because the mean of its divisors is an integer number (10152471780).

Almost surely, 2^191929200001 is an apocalyptic number.

191929200001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

191929200001 is a deficient number, since it is larger than the sum of its proper divisors (51730122719).

191929200001 is a wasteful number, since it uses less digits than its factorization.

191929200001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143245 (or 143238 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 34.

The spelling of 191929200001 in words is "one hundred ninety-one billion, nine hundred twenty-nine million, two hundred thousand, one".