681921233283 has 8 divisors (see below), whose sum is σ = 909242769600. Its totient is φ = 454606926248.

The previous prime is 681921233249. The next prime is 681921233297. The reversal of 681921233283 is 382332129186.

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

It is a cyclic number.

It is not a de Polignac number, because 681921233283 - 2⁹ = 681921232771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (681921233243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1583253 + ... + 1967366.

It is an arithmetic number, because the mean of its divisors is an integer number (113655346200).

Almost surely, 2^681921233283 is an apocalyptic number.

681921233283 is a deficient number, since it is larger than the sum of its proper divisors (227321536317).

681921233283 is a wasteful number, since it uses less digits than its factorization.

681921233283 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3614641.

The product of its digits is 746496, while the sum is 48.

The spelling of 681921233283 in words is "six hundred eighty-one billion, nine hundred twenty-one million, two hundred thirty-three thousand, two hundred eighty-three".