84801749479 has 16 divisors (see below), whose sum is σ = 86023520352. Its totient is φ = 83591405568.

The previous prime is 84801749471. The next prime is 84801749507. The reversal of 84801749479 is 97494710848.

It is a cyclic number.

It is not a de Polignac number, because 84801749479 - 2³ = 84801749471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84801749471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10246287 + ... + 10254559.

It is an arithmetic number, because the mean of its divisors is an integer number (5376470022).

Almost surely, 2^84801749479 is an apocalyptic number.

84801749479 is a deficient number, since it is larger than the sum of its proper divisors (1221770873).

84801749479 is a wasteful number, since it uses less digits than its factorization.

84801749479 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8946.

The product of its (nonzero) digits is 16257024, while the sum is 61.

The spelling of 84801749479 in words is "eighty-four billion, eight hundred one million, seven hundred forty-nine thousand, four hundred seventy-nine".