84225870287 has 4 divisors (see below), whose sum is σ = 90704783400. Its totient is φ = 77746957176.

The previous prime is 84225870259. The next prime is 84225870293. The reversal of 84225870287 is 78207852248.

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

It is a cyclic number.

It is not a de Polignac number, because 84225870287 - 2²⁰ = 84224821711 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 (84225870187) 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, 3239456537 + ... + 3239456562.

It is an arithmetic number, because the mean of its divisors is an integer number (22676195850).

Almost surely, 2^84225870287 is an apocalyptic number.

84225870287 is a deficient number, since it is larger than the sum of its proper divisors (6478913113).

84225870287 is a wasteful number, since it uses less digits than its factorization.

84225870287 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6478913112.

The product of its (nonzero) digits is 4014080, while the sum is 53.

The spelling of 84225870287 in words is "eighty-four billion, two hundred twenty-five million, eight hundred seventy thousand, two hundred eighty-seven".