681035375783734 has 8 divisors (see below), whose sum is σ = 1021555787149728. Its totient is φ = 340516780067160.

The previous prime is 681035375783731. The next prime is 681035375783743. The reversal of 681035375783734 is 437387573530186.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681035375783731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 452974237 + ... + 454475224.

It is an arithmetic number, because the mean of its divisors is an integer number (127694473393716).

Almost surely, 2^{681035375783734} is an apocalyptic number.

681035375783734 is a deficient number, since it is larger than the sum of its proper divisors (340520411365994).

681035375783734 is a wasteful number, since it uses less digits than its factorization.

681035375783734 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 907824710.

The product of its (nonzero) digits is 1066867200, while the sum is 70.

The spelling of 681035375783734 in words is "six hundred eighty-one trillion, thirty-five billion, three hundred seventy-five million, seven hundred eighty-three thousand, seven hundred thirty-four".