683961921802 has 16 divisors (see below), whose sum is σ = 1053693222912. Its totient is φ = 332731236240.

The previous prime is 683961921787. The next prime is 683961921809. The reversal of 683961921802 is 208129169386.

It is not an unprimeable number, because it can be changed into a prime (683961921809) 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, 6091623 + ... + 6202885.

It is an arithmetic number, because the mean of its divisors is an integer number (65855826432).

Almost surely, 2^683961921802 is an apocalyptic number.

683961921802 is a deficient number, since it is larger than the sum of its proper divisors (369731301110).

683961921802 is a wasteful number, since it uses less digits than its factorization.

683961921802 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 194373.

The product of its (nonzero) digits is 2239488, while the sum is 55.

The spelling of 683961921802 in words is "six hundred eighty-three billion, nine hundred sixty-one million, nine hundred twenty-one thousand, eight hundred two".