84380257191 has 16 divisors (see below), whose sum is σ = 113639430528. Its totient is φ = 55687476000.

The previous prime is 84380257177. The next prime is 84380257237. The reversal of 84380257191 is 19175208348.

It is not a de Polignac number, because 84380257191 - 2⁷ = 84380257063 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84380257191.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84380257151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2202300 + ... + 2240286.

It is an arithmetic number, because the mean of its divisors is an integer number (7102464408).

Almost surely, 2^84380257191 is an apocalyptic number.

84380257191 is a deficient number, since it is larger than the sum of its proper divisors (29259173337).

84380257191 is a wasteful number, since it uses less digits than its factorization.

84380257191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45422.

The product of its (nonzero) digits is 483840, while the sum is 48.

The spelling of 84380257191 in words is "eighty-four billion, three hundred eighty million, two hundred fifty-seven thousand, one hundred ninety-one".