84797577579749 has 8 divisors (see below), whose sum is σ = 87722039442432. Its totient is φ = 81884931725520.

The previous prime is 84797577579731. The next prime is 84797577579761. The reversal of 84797577579749 is 94797577579748.

It is a happy number.

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 84797577579749 - 2⁴⁴ = 67205391535333 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 (84797577579769) 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, 2953987514 + ... + 2954016219.

It is an arithmetic number, because the mean of its divisors is an integer number (10965254930304).

Almost surely, 2^{84797577579749} is an apocalyptic number.

It is an amenable number.

84797577579749 is a deficient number, since it is larger than the sum of its proper divisors (2924461862683).

84797577579749 is a wasteful number, since it uses less digits than its factorization.

84797577579749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5908004227.

The product of its digits is 274451587200, while the sum is 95.

Subtracting 84797577579749 from its reverse (94797577579748), we obtain a palindrome (9999999999999).

The spelling of 84797577579749 in words is "eighty-four trillion, seven hundred ninety-seven billion, five hundred seventy-seven million, five hundred seventy-nine thousand, seven hundred forty-nine".