84517876451 has 8 divisors (see below), whose sum is σ = 84625290000. Its totient is φ = 84410525920.

The previous prime is 84517876439. The next prime is 84517876561. The reversal of 84517876451 is 15467871548.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84517876451 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84517876351) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3031925 + ... + 3059673.

It is an arithmetic number, because the mean of its divisors is an integer number (10578161250).

Almost surely, 2^84517876451 is an apocalyptic number.

84517876451 is a deficient number, since it is larger than the sum of its proper divisors (107413549).

84517876451 is a wasteful number, since it uses less digits than its factorization.

84517876451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31509.

The product of its digits is 7526400, while the sum is 56.

The spelling of 84517876451 in words is "eighty-four billion, five hundred seventeen million, eight hundred seventy-six thousand, four hundred fifty-one".