82862642551 has 4 divisors (see below), whose sum is σ = 89236691992. Its totient is φ = 76488593112.

The previous prime is 82862642549. The next prime is 82862642561. The reversal of 82862642551 is 15524626828.

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 82862642551 - 2¹ = 82862642549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 82862642495 and 82862642504.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82862642561) 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, 3187024701 + ... + 3187024726.

It is an arithmetic number, because the mean of its divisors is an integer number (22309172998).

Almost surely, 2^82862642551 is an apocalyptic number.

82862642551 is a deficient number, since it is larger than the sum of its proper divisors (6374049441).

82862642551 is a wasteful number, since it uses less digits than its factorization.

82862642551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6374049440.

The product of its digits is 1843200, while the sum is 49.

The spelling of 82862642551 in words is "eighty-two billion, eight hundred sixty-two million, six hundred forty-two thousand, five hundred fifty-one".