84351204091 has 8 divisors (see below), whose sum is σ = 105165137664. Its totient is φ = 65728210920.

The previous prime is 84351204059. The next prime is 84351204139. The reversal of 84351204091 is 19040215348.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 84351204091 - 2⁵ = 84351204059 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84351204091.

It is not an unprimeable number, because it can be changed into a prime (84351204991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 547735015 + ... + 547735168.

It is an arithmetic number, because the mean of its divisors is an integer number (13145642208).

Almost surely, 2^84351204091 is an apocalyptic number.

84351204091 is a deficient number, since it is larger than the sum of its proper divisors (20813933573).

84351204091 is a wasteful number, since it uses less digits than its factorization.

84351204091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1095470201.

The product of its (nonzero) digits is 34560, while the sum is 37.

The spelling of 84351204091 in words is "eighty-four billion, three hundred fifty-one million, two hundred four thousand, ninety-one".