84589994379 has 32 divisors (see below), whose sum is σ = 124211024640. Its totient is φ = 50780979200.

The previous prime is 84589994351. The next prime is 84589994399. The reversal of 84589994379 is 97349998548.

It is a cyclic number.

It is not a de Polignac number, because 84589994379 - 2⁵ = 84589994347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 84589994379.

It is not an unprimeable number, because it can be changed into a prime (84589994329) 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, 1490239 + ... + 1545959.

It is an arithmetic number, because the mean of its divisors is an integer number (3881594520).

Almost surely, 2^84589994379 is an apocalyptic number.

84589994379 is a deficient number, since it is larger than the sum of its proper divisors (39621030261).

84589994379 is a wasteful number, since it uses less digits than its factorization.

84589994379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56171.

The product of its digits is 705438720, while the sum is 75.

The spelling of 84589994379 in words is "eighty-four billion, five hundred eighty-nine million, nine hundred ninety-four thousand, three hundred seventy-nine".