681354673334 has 8 divisors (see below), whose sum is σ = 1022048101800. Its totient is φ = 340671972736.

The previous prime is 681354673319. The next prime is 681354673357. The reversal of 681354673334 is 433376453186.

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

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, 2521259 + ... + 2778390.

It is an arithmetic number, because the mean of its divisors is an integer number (127756012725).

Almost surely, 2^681354673334 is an apocalyptic number.

681354673334 is a deficient number, since it is larger than the sum of its proper divisors (340693428466).

681354673334 is a wasteful number, since it uses less digits than its factorization.

681354673334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5363934.

The product of its digits is 13063680, while the sum is 53.

The spelling of 681354673334 in words is "six hundred eighty-one billion, three hundred fifty-four million, six hundred seventy-three thousand, three hundred thirty-four".