84290977909247 has 12 divisors (see below), whose sum is σ = 93434019149136. Its totient is φ = 75883437907200.

The previous prime is 84290977909223. The next prime is 84290977909279. The reversal of 84290977909247 is 74290977909248.

It is not a de Polignac number, because 84290977909247 - 2⁶ = 84290977909183 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 (84290977900247) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6340521254 + ... + 6340534547.

It is an arithmetic number, because the mean of its divisors is an integer number (7786168262428).

Almost surely, 2^{84290977909247} is an apocalyptic number.

84290977909247 is a deficient number, since it is larger than the sum of its proper divisors (9143041239889).

84290977909247 is a wasteful number, since it uses less digits than its factorization.

84290977909247 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12681055858 (or 12681055841 counting only the distinct ones).

The product of its (nonzero) digits is 1152216576, while the sum is 77.

Subtracting from 84290977909247 its reverse (74290977909248), we obtain a palindrome (9999999999999).

The spelling of 84290977909247 in words is "eighty-four trillion, two hundred ninety billion, nine hundred seventy-seven million, nine hundred nine thousand, two hundred forty-seven".