686838037052 has 12 divisors (see below), whose sum is σ = 1202028724680. Its totient is φ = 343401258576.

The previous prime is 686838037051. The next prime is 686838037069. The reversal of 686838037052 is 250730838686.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (686838037051) 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, 4352783 + ... + 4507814.

It is an arithmetic number, because the mean of its divisors is an integer number (100169060390).

Almost surely, 2^686838037052 is an apocalyptic number.

It is an amenable number.

686838037052 is a deficient number, since it is larger than the sum of its proper divisors (515190687628).

686838037052 is a wasteful number, since it uses less digits than its factorization.

686838037052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8879980 (or 8879978 counting only the distinct ones).

The product of its (nonzero) digits is 11612160, while the sum is 56.

The spelling of 686838037052 in words is "six hundred eighty-six billion, eight hundred thirty-eight million, thirty-seven thousand, fifty-two".