81014274574 has 8 divisors (see below), whose sum is σ = 121523371560. Its totient is φ = 40506484056.

The previous prime is 81014274563. The next prime is 81014274619. The reversal of 81014274574 is 47547241018.

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

It is a self number, because there is not a number n which added to its sum of digits gives 81014274574.

It is a congruent number.

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, 153169 + ... + 430684.

It is an arithmetic number, because the mean of its divisors is an integer number (15190421445).

Almost surely, 2^81014274574 is an apocalyptic number.

81014274574 is a deficient number, since it is larger than the sum of its proper divisors (40509096986).

81014274574 is a wasteful number, since it uses less digits than its factorization.

81014274574 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653234.

The product of its (nonzero) digits is 250880, while the sum is 43.

The spelling of 81014274574 in words is "eighty-one billion, fourteen million, two hundred seventy-four thousand, five hundred seventy-four".