84118572269 has 4 divisors (see below), whose sum is σ = 85705715196. Its totient is φ = 82531429344.

The previous prime is 84118572259. The next prime is 84118572277. The reversal of 84118572269 is 96227581148.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 61958677225 + 22159895044 = 248915^2 + 148862^2 .

It is a cyclic number.

It is not a de Polignac number, because 84118572269 - 2¹⁶ = 84118506733 is a prime.

It is a super-2 number, since 2×84118572269² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (53), and also a Moran number because the ratio is a prime number: 1587142873 = 84118572269 / (8 + 4 + 1 + 1 + 8 + 5 + 7 + 2 + 2 + 6 + 9).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 84118572269.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (84118572229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 793571384 + ... + 793571489.

It is an arithmetic number, because the mean of its divisors is an integer number (21426428799).

Almost surely, 2^84118572269 is an apocalyptic number.

It is an amenable number.

84118572269 is a deficient number, since it is larger than the sum of its proper divisors (1587142927).

84118572269 is a wasteful number, since it uses less digits than its factorization.

84118572269 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1587142926.

The product of its digits is 1935360, while the sum is 53.

The spelling of 84118572269 in words is "eighty-four billion, one hundred eighteen million, five hundred seventy-two thousand, two hundred sixty-nine".