681452730202 has 32 divisors (see below), whose sum is σ = 1070966489472. Its totient is φ = 324587275584.

The previous prime is 681452730197. The next prime is 681452730227. The reversal of 681452730202 is 202037254186.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11320528 + ... + 11380564.

It is an arithmetic number, because the mean of its divisors is an integer number (33467702796).

Almost surely, 2^681452730202 is an apocalyptic number.

681452730202 is a deficient number, since it is larger than the sum of its proper divisors (389513759270).

681452730202 is a wasteful number, since it uses less digits than its factorization.

681452730202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61062.

The product of its (nonzero) digits is 161280, while the sum is 40.

Adding to 681452730202 its reverse (202037254186), we get a palindrome (883489984388).

The spelling of 681452730202 in words is "six hundred eighty-one billion, four hundred fifty-two million, seven hundred thirty thousand, two hundred two".