81848027862 has 12 divisors (see below), whose sum is σ = 177337393740. Its totient is φ = 27282675948.

The previous prime is 81848027851. The next prime is 81848027873. The reversal of 81848027862 is 26872084818.

81848027862 is a `hidden beast` number, since 81 + 8 + 480 + 2 + 7 + 86 + 2 = 666.

It is an interprime number because it is at equal distance from previous prime (81848027851) and next prime (81848027873).

It is a junction number, because it is equal to n+sod(n) for n = 81848027799 and 81848027808.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2273556312 + ... + 2273556347.

It is an arithmetic number, because the mean of its divisors is an integer number (14778116145).

Almost surely, 2^81848027862 is an apocalyptic number.

81848027862 is an abundant number, since it is smaller than the sum of its proper divisors (95489365878).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

81848027862 is a wasteful number, since it uses less digits than its factorization.

81848027862 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4547112667 (or 4547112664 counting only the distinct ones).

The product of its (nonzero) digits is 2752512, while the sum is 54.

The spelling of 81848027862 in words is "eighty-one billion, eight hundred forty-eight million, twenty-seven thousand, eight hundred sixty-two".