84489415245 has 24 divisors (see below), whose sum is σ = 150020233272. Its totient is φ = 43961971200.

The previous prime is 84489415237. The next prime is 84489415337. The reversal of 84489415245 is 54251498448.

84489415245 is a `hidden beast` number, since 8 + 4 + 489 + 4 + 152 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 12940655049 + 71548760196 = 113757^2 + 267486^2 .

It is not a de Polignac number, because 84489415245 - 2³ = 84489415237 is a prime.

It is a super-2 number, since 2×84489415245² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (54) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 84489415191 and 84489415200.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 22895016 + ... + 22898705.

It is an arithmetic number, because the mean of its divisors is an integer number (6250843053).

Almost surely, 2^84489415245 is an apocalyptic number.

It is an amenable number.

84489415245 is a deficient number, since it is larger than the sum of its proper divisors (65530818027).

84489415245 is a wasteful number, since it uses less digits than its factorization.

84489415245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45793773 (or 45793770 counting only the distinct ones).

The product of its digits is 7372800, while the sum is 54.

The spelling of 84489415245 in words is "eighty-four billion, four hundred eighty-nine million, four hundred fifteen thousand, two hundred forty-five".