681473333480 has 32 divisors (see below), whose sum is σ = 1533407244840. Its totient is φ = 272572934400.

The previous prime is 681473333459. The next prime is 681473333501. The reversal of 681473333480 is 84333374186.

It is an interprime number because it is at equal distance from previous prime (681473333459) and next prime (681473333501).

It can be written as a sum of positive squares in 4 ways, for example, as 630712342276 + 50760991204 = 794174^2 + 225302^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 172022 + ... + 1180058.

Almost surely, 2^681473333480 is an apocalyptic number.

It is an amenable number.

681473333480 is an abundant number, since it is smaller than the sum of its proper divisors (851933911360).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

681473333480 is a wasteful number, since it uses less digits than its factorization.

681473333480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1024949 (or 1024945 counting only the distinct ones).

The product of its (nonzero) digits is 3483648, while the sum is 50.

The spelling of 681473333480 in words is "six hundred eighty-one billion, four hundred seventy-three million, three hundred thirty-three thousand, four hundred eighty".