84797577579747 has 8 divisors (see below), whose sum is σ = 113063533242640. Its totient is φ = 56531670151680.

The previous prime is 84797577579731. The next prime is 84797577579761. The reversal of 84797577579747 is 74797577579748.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 84797577579747 - 2⁴ = 84797577579731 is a prime.

It is a super-2 number, since 2×84797577579747² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84797577529747) 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, 7735222 + ... + 15146907.

It is an arithmetic number, because the mean of its divisors is an integer number (14132941655330).

Almost surely, 2^{84797577579747} is an apocalyptic number.

84797577579747 is a deficient number, since it is larger than the sum of its proper divisors (28265955662893).

84797577579747 is a wasteful number, since it uses less digits than its factorization.

84797577579747 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24117413.

The product of its digits is 213462345600, while the sum is 93.

Subtracting from 84797577579747 its reverse (74797577579748), we obtain a palindrome (9999999999999).

The spelling of 84797577579747 in words is "eighty-four trillion, seven hundred ninety-seven billion, five hundred seventy-seven million, five hundred seventy-nine thousand, seven hundred forty-seven".