84802249729 has 4 divisors (see below), whose sum is σ = 85172565460. Its totient is φ = 84431934000.

The previous prime is 84802249717. The next prime is 84802249759. The reversal of 84802249729 is 92794220848.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 80849235600 + 3953014129 = 284340^2 + 62873^2 .

It is a cyclic number.

It is not a de Polignac number, because 84802249729 - 2²³ = 84793861121 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 84802249729.

It is not an unprimeable number, because it can be changed into a prime (84802249759) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 185157522 + ... + 185157979.

It is an arithmetic number, because the mean of its divisors is an integer number (21293141365).

Almost surely, 2^84802249729 is an apocalyptic number.

It is an amenable number.

84802249729 is a deficient number, since it is larger than the sum of its proper divisors (370315731).

84802249729 is a wasteful number, since it uses less digits than its factorization.

84802249729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 370315730.

The product of its (nonzero) digits is 4644864, while the sum is 55.

The spelling of 84802249729 in words is "eighty-four billion, eight hundred two million, two hundred forty-nine thousand, seven hundred twenty-nine".