681737355210 has 16 divisors (see below), whose sum is σ = 1636169652576. Its totient is φ = 181796628048.

The previous prime is 681737355203. The next prime is 681737355263. The reversal of 681737355210 is 12553737186.

It is a self number, because there is not a number n which added to its sum of digits gives 681737355210.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11362289224 + ... + 11362289283.

It is an arithmetic number, because the mean of its divisors is an integer number (102260603286).

Almost surely, 2^681737355210 is an apocalyptic number.

681737355210 is an abundant number, since it is smaller than the sum of its proper divisors (954432297366).

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

681737355210 is a wasteful number, since it uses less digits than its factorization.

681737355210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22724578517.

The product of its (nonzero) digits is 1058400, while the sum is 48.

The spelling of 681737355210 in words is "six hundred eighty-one billion, seven hundred thirty-seven million, three hundred fifty-five thousand, two hundred ten".