82126181885 has 16 divisors (see below), whose sum is σ = 107518430592. Its totient is φ = 59723803200.

The previous prime is 82126181873. The next prime is 82126181897. The reversal of 82126181885 is 58818162128.

It is an interprime number because it is at equal distance from previous prime (82126181873) and next prime (82126181897).

It is not a de Polignac number, because 82126181885 - 2⁸ = 82126181629 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 846707 + ... + 938703.

It is an arithmetic number, because the mean of its divisors is an integer number (6719901912).

Almost surely, 2^82126181885 is an apocalyptic number.

It is an amenable number.

82126181885 is a deficient number, since it is larger than the sum of its proper divisors (25392248707).

82126181885 is a wasteful number, since it uses less digits than its factorization.

82126181885 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 108244.

The product of its digits is 491520, while the sum is 50.

The spelling of 82126181885 in words is "eighty-two billion, one hundred twenty-six million, one hundred eighty-one thousand, eight hundred eighty-five".