191934341925 has 24 divisors (see below), whose sum is σ = 317758632384. Its totient is φ = 102227180160.

The previous prime is 191934341917. The next prime is 191934342001. The reversal of 191934341925 is 529143439191.

It is not a de Polignac number, because 191934341925 - 2³ = 191934341917 is a prime.

It is a super-2 number, since 2×191934341925² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1666432 + ... + 1777881.

It is an arithmetic number, because the mean of its divisors is an integer number (13239943016).

Almost surely, 2^191934341925 is an apocalyptic number.

191934341925 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

191934341925 is a deficient number, since it is larger than the sum of its proper divisors (125824290459).

191934341925 is a wasteful number, since it uses less digits than its factorization.

191934341925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3445069 (or 3445064 counting only the distinct ones).

The product of its digits is 1049760, while the sum is 51.

The spelling of 191934341925 in words is "one hundred ninety-one billion, nine hundred thirty-four million, three hundred forty-one thousand, nine hundred twenty-five".