191374640950 has 24 divisors (see below), whose sum is σ = 368231208480. Its totient is φ = 73910205600.

The previous prime is 191374640869. The next prime is 191374641049. The reversal of 191374640950 is 59046473191.

191374640950 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a hoax number, since the sum of its digits (49) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 191374640894 and 191374640903.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65989806 + ... + 65992705.

It is an arithmetic number, because the mean of its divisors is an integer number (15342967020).

Almost surely, 2^191374640950 is an apocalyptic number.

191374640950 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

191374640950 is a deficient number, since it is larger than the sum of its proper divisors (176856567530).

191374640950 is a wasteful number, since it uses less digits than its factorization.

191374640950 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131982552 (or 131982547 counting only the distinct ones).

The product of its (nonzero) digits is 816480, while the sum is 49.

The spelling of 191374640950 in words is "one hundred ninety-one billion, three hundred seventy-four million, six hundred forty thousand, nine hundred fifty".