84290977909249 has 16 divisors (see below), whose sum is σ = 84483009604224. Its totient is φ = 84099236256000.

The previous prime is 84290977909223. The next prime is 84290977909279. The reversal of 84290977909249 is 94290977909248.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84290977909249 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84290977909279) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2500234617 + ... + 2500268329.

It is an arithmetic number, because the mean of its divisors is an integer number (5280188100264).

Almost surely, 2^{84290977909249} is an apocalyptic number.

It is an amenable number.

84290977909249 is a deficient number, since it is larger than the sum of its proper divisors (192031694975).

84290977909249 is a wasteful number, since it uses less digits than its factorization.

84290977909249 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37848.

The product of its (nonzero) digits is 1481421312, while the sum is 79.

Subtracting 84290977909249 from its reverse (94290977909248), we obtain a palindrome (9999999999999).

The spelling of 84290977909249 in words is "eighty-four trillion, two hundred ninety billion, nine hundred seventy-seven million, nine hundred nine thousand, two hundred forty-nine".