191268931932 has 72 divisors (see below), whose sum is σ = 536961484080. Its totient is φ = 58851973440.

The previous prime is 191268931927. The next prime is 191268931939. The reversal of 191268931932 is 239139862191.

191268931932 is a `hidden beast` number, since 191 + 268 + 9 + 3 + 193 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191268931939) 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, 5221419 + ... + 5257922.

It is an arithmetic number, because the mean of its divisors is an integer number (7457798390).

Almost surely, 2^191268931932 is an apocalyptic number.

191268931932 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

191268931932 is an abundant number, since it is smaller than the sum of its proper divisors (345692552148).

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

191268931932 is a wasteful number, since it uses less digits than its factorization.

191268931932 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10479380 (or 10479359 counting only the distinct ones).

The product of its digits is 1259712, while the sum is 54.

The spelling of 191268931932 in words is "one hundred ninety-one billion, two hundred sixty-eight million, nine hundred thirty-one thousand, nine hundred thirty-two".