681046048 has 24 divisors (see below), whose sum is σ = 1347768828. Its totient is φ = 338755584.

The previous prime is 681046019. The next prime is 681046049. The reversal of 681046048 is 840640186.

It can be written as a sum of positive squares in 2 ways, for example, as 643738384 + 37307664 = 25372^2 + 6108^2 .

It is a super-3 number, since 3×681046048³ (a number of 27 digits) contains 333 as substring.

It is a Smith number, since the sum of its digits (37) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 681045998 and 681046016.

It is not an unprimeable number, because it can be changed into a prime (681046049) 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, 48961 + ... + 61312.

Almost surely, 2^681046048 is an apocalyptic number.

It is an amenable number.

681046048 is a deficient number, since it is larger than the sum of its proper divisors (666722780).

681046048 is a wasteful number, since it uses less digits than its factorization.

681046048 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110476 (or 110468 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 37.

The square root of 681046048 is about 26096.8589680827. The cubic root of 681046048 is about 879.8166146791.

The spelling of 681046048 in words is "six hundred eighty-one million, forty-six thousand, forty-eight".