84872003591 has 2 divisors, whose sum is σ = 84872003592. Its totient is φ = 84872003590.

The previous prime is 84872003543. The next prime is 84872003707. The reversal of 84872003591 is 19530027848.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84872003591 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (84872003191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42436001795 + 42436001796.

It is an arithmetic number, because the mean of its divisors is an integer number (42436001796).

Almost surely, 2^84872003591 is an apocalyptic number.

84872003591 is a deficient number, since it is larger than the sum of its proper divisors (1).

84872003591 is an equidigital number, since it uses as much as digits as its factorization.

84872003591 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 84872003591 in words is "eighty-four billion, eight hundred seventy-two million, three thousand, five hundred ninety-one".