191372048719 has 4 divisors (see below), whose sum is σ = 191398282144. Its totient is φ = 191345815296.

The previous prime is 191372048701. The next prime is 191372048753. The reversal of 191372048719 is 917840273191.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 917840273191 = 13127 ⋅69920033.

It is a cyclic number.

It is not a de Polignac number, because 191372048719 - 2¹³ = 191372040527 is a prime.

It is a super-2 number, since 2×191372048719² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (191372048759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 13105767 + ... + 13120360.

It is an arithmetic number, because the mean of its divisors is an integer number (47849570536).

Almost surely, 2^191372048719 is an apocalyptic number.

191372048719 is a deficient number, since it is larger than the sum of its proper divisors (26233425).

191372048719 is an equidigital number, since it uses as much as digits as its factorization.

191372048719 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26233424.

The product of its (nonzero) digits is 762048, while the sum is 52.

The spelling of 191372048719 in words is "one hundred ninety-one billion, three hundred seventy-two million, forty-eight thousand, seven hundred nineteen".