82854558987 has 16 divisors (see below), whose sum is σ = 113075411328. Its totient is φ = 53935801920.

The previous prime is 82854558973. The next prime is 82854558991. The reversal of 82854558987 is 78985545828.

It is not a de Polignac number, because 82854558987 - 2⁴ = 82854558971 is a prime.

It is not an unprimeable number, because it can be changed into a prime (82854558287) 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, 349312 + ... + 536402.

It is an arithmetic number, because the mean of its divisors is an integer number (7067213208).

Almost surely, 2^82854558987 is an apocalyptic number.

82854558987 is a deficient number, since it is larger than the sum of its proper divisors (30220852341).

82854558987 is a wasteful number, since it uses less digits than its factorization.

82854558987 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190570.

The product of its digits is 258048000, while the sum is 69.

The spelling of 82854558987 in words is "eighty-two billion, eight hundred fifty-four million, five hundred fifty-eight thousand, nine hundred eighty-seven".