81238466162 has 8 divisors (see below), whose sum is σ = 139265942016. Its totient is φ = 34816485492.

The previous prime is 81238466131. The next prime is 81238466191. The reversal of 81238466162 is 26166483218.

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, 2901373778 + ... + 2901373805.

It is an arithmetic number, because the mean of its divisors is an integer number (17408242752).

Almost surely, 2^81238466162 is an apocalyptic number.

81238466162 is a deficient number, since it is larger than the sum of its proper divisors (58027475854).

81238466162 is a wasteful number, since it uses less digits than its factorization.

81238466162 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5802747592.

The product of its digits is 663552, while the sum is 47.

The spelling of 81238466162 in words is "eighty-one billion, two hundred thirty-eight million, four hundred sixty-six thousand, one hundred sixty-two".