191461372250 has 32 divisors (see below), whose sum is σ = 358969957632. Its totient is φ = 76466115600.

The previous prime is 191461372241. The next prime is 191461372307. The reversal of 191461372250 is 52273164191.

It is a junction number, because it is equal to n+sod(n) for n = 191461372198 and 191461372207.

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, 430094 + ... + 753593.

It is an arithmetic number, because the mean of its divisors is an integer number (11217811176).

Almost surely, 2^191461372250 is an apocalyptic number.

191461372250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

191461372250 is a deficient number, since it is larger than the sum of its proper divisors (167508585382).

191461372250 is a wasteful number, since it uses less digits than its factorization.

191461372250 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1184351 (or 1184341 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 41.

The spelling of 191461372250 in words is "one hundred ninety-one billion, four hundred sixty-one million, three hundred seventy-two thousand, two hundred fifty".