84779252197 has 8 divisors (see below), whose sum is σ = 88288531200. Its totient is φ = 81318377280.

The previous prime is 84779252177. The next prime is 84779252203. The reversal of 84779252197 is 79125297748.

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 84779252197 - 2²³ = 84770863589 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 (84779252147) 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, 12097447 + ... + 12104452.

It is an arithmetic number, because the mean of its divisors is an integer number (11036066400).

Almost surely, 2^84779252197 is an apocalyptic number.

It is an amenable number.

84779252197 is a deficient number, since it is larger than the sum of its proper divisors (3509279003).

84779252197 is a wasteful number, since it uses less digits than its factorization.

84779252197 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24202043.

The product of its digits is 17781120, while the sum is 61.

The spelling of 84779252197 in words is "eighty-four billion, seven hundred seventy-nine million, two hundred fifty-two thousand, one hundred ninety-seven".