82445869877 has 12 divisors (see below), whose sum is σ = 95911464960. Its totient is φ = 70664171256.

The previous prime is 82445869813. The next prime is 82445869931. The reversal of 82445869877 is 77896854428.

It is not a de Polignac number, because 82445869877 - 2⁶ = 82445869813 is a prime.

It is a Smith number, since the sum of its digits (68) coincides with the sum of the digits of its prime factors.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (82445869577) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1324274 + ... + 1385132.

It is an arithmetic number, because the mean of its divisors is an integer number (7992622080).

Almost surely, 2^82445869877 is an apocalyptic number.

It is an amenable number.

82445869877 is a deficient number, since it is larger than the sum of its proper divisors (13465595083).

82445869877 is a wasteful number, since it uses less digits than its factorization.

82445869877 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88520 (or 88513 counting only the distinct ones).

The product of its digits is 216760320, while the sum is 68.

The spelling of 82445869877 in words is "eighty-two billion, four hundred forty-five million, eight hundred sixty-nine thousand, eight hundred seventy-seven".