191972213601883 has 32 divisors (see below), whose sum is σ = 228399323120640. Its totient is φ = 159048944720640.

The previous prime is 191972213601851. The next prime is 191972213601887. The reversal of 191972213601883 is 388106312279191.

191972213601883 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 191972213601883 - 2⁵ = 191972213601851 is a prime.

It is a super-2 number, since 2×191972213601883² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (191972213601887) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 248181735 + ... + 248954047.

It is an arithmetic number, because the mean of its divisors is an integer number (7137478847520).

Almost surely, 2^{191972213601883} is an apocalyptic number.

191972213601883 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

191972213601883 is a deficient number, since it is larger than the sum of its proper divisors (36427109518757).

191972213601883 is a wasteful number, since it uses less digits than its factorization.

191972213601883 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 794419.

The product of its (nonzero) digits is 7838208, while the sum is 61.

The spelling of 191972213601883 in words is "one hundred ninety-one trillion, nine hundred seventy-two billion, two hundred thirteen million, six hundred one thousand, eight hundred eighty-three".