84253267808827 has 4 divisors (see below), whose sum is σ = 90734288409520. Its totient is φ = 77772247208136.

The previous prime is 84253267808789. The next prime is 84253267808867. The reversal of 84253267808827 is 72880876235248.

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

It is a de Polignac number, because none of the positive numbers 2^k-84253267808827 is a prime.

It is a super-2 number, since 2×84253267808827² (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 (84253267808867) 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, 3240510300327 + ... + 3240510300352.

It is an arithmetic number, because the mean of its divisors is an integer number (22683572102380).

Almost surely, 2^{84253267808827} is an apocalyptic number.

84253267808827 is a deficient number, since it is larger than the sum of its proper divisors (6481020600693).

84253267808827 is a wasteful number, since it uses less digits than its factorization.

84253267808827 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6481020600692.

The product of its (nonzero) digits is 578027520, while the sum is 70.

The spelling of 84253267808827 in words is "eighty-four trillion, two hundred fifty-three billion, two hundred sixty-seven million, eight hundred eight thousand, eight hundred twenty-seven".