191903671146 has 32 divisors (see below), whose sum is σ = 418827941568. Its totient is φ = 58134707840.

The previous prime is 191903671133. The next prime is 191903671153. The reversal of 191903671146 is 641176309191.

It is a super-2 number, since 2×191903671146² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 191903671095 and 191903671104.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 231405 + ... + 661328.

It is an arithmetic number, because the mean of its divisors is an integer number (13088373174).

Almost surely, 2^191903671146 is an apocalyptic number.

191903671146 is an abundant number, since it is smaller than the sum of its proper divisors (226924270422).

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

191903671146 is a wasteful number, since it uses less digits than its factorization.

191903671146 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 896006.

The product of its (nonzero) digits is 244944, while the sum is 48.

The spelling of 191903671146 in words is "one hundred ninety-one billion, nine hundred three million, six hundred seventy-one thousand, one hundred forty-six".