81018013082 has 8 divisors (see below), whose sum is σ = 121566652896. Its totient is φ = 40495795452.

The previous prime is 81018013079. The next prime is 81018013093. The reversal of 81018013082 is 28031081018.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6597878 + ... + 6610145.

It is an arithmetic number, because the mean of its divisors is an integer number (15195831612).

Almost surely, 2^81018013082 is an apocalyptic number.

81018013082 is a deficient number, since it is larger than the sum of its proper divisors (40548639814).

81018013082 is a wasteful number, since it uses less digits than its factorization.

81018013082 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13211092.

The product of its (nonzero) digits is 3072, while the sum is 32.

The spelling of 81018013082 in words is "eighty-one billion, eighteen million, thirteen thousand, eighty-two".