681474000148 has 24 divisors (see below), whose sum is σ = 1215052938792. Its totient is φ = 334363405824.

The previous prime is 681474000127. The next prime is 681474000161. The reversal of 681474000148 is 841000474186.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 187880636304 + 493593363844 = 433452^2 + 702562^2 .

It is a congruent number.

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, 5865865 + ... + 5980912.

It is an arithmetic number, because the mean of its divisors is an integer number (50627205783).

Almost surely, 2^681474000148 is an apocalyptic number.

It is an amenable number.

681474000148 is a deficient number, since it is larger than the sum of its proper divisors (533578938644).

681474000148 is a wasteful number, since it uses less digits than its factorization.

681474000148 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11847051 (or 11847049 counting only the distinct ones).

The product of its (nonzero) digits is 172032, while the sum is 43.

The spelling of 681474000148 in words is "six hundred eighty-one billion, four hundred seventy-four million, one hundred forty-eight", and thus it is an aban number.