81007284462 has 32 divisors (see below), whose sum is σ = 174517701120. Its totient is φ = 24919536480.

The previous prime is 81007284403. The next prime is 81007284497. The reversal of 81007284462 is 26448270018.

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, 224239 + ... + 460757.

It is an arithmetic number, because the mean of its divisors is an integer number (5453678160).

Almost surely, 2^81007284462 is an apocalyptic number.

81007284462 is an abundant number, since it is smaller than the sum of its proper divisors (93510416658).

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

81007284462 is a wasteful number, since it uses less digits than its factorization.

81007284462 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 240928.

The product of its (nonzero) digits is 172032, while the sum is 42.

The spelling of 81007284462 in words is "eighty-one billion, seven million, two hundred eighty-four thousand, four hundred sixty-two".