681480067340 has 24 divisors (see below), whose sum is σ = 1431149670720. Its totient is φ = 272584116608.

The previous prime is 681480067321. The next prime is 681480067409. The reversal of 681480067340 is 43760084186.

It is a happy 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, 238541 + ... + 1191579.

It is an arithmetic number, because the mean of its divisors is an integer number (59631236280).

Almost surely, 2^681480067340 is an apocalyptic number.

It is an amenable number.

681480067340 is an abundant number, since it is smaller than the sum of its proper divisors (749669603380).

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

681480067340 is a wasteful number, since it uses less digits than its factorization.

681480067340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 988801 (or 988799 counting only the distinct ones).

The product of its (nonzero) digits is 774144, while the sum is 47.

The spelling of 681480067340 in words is "six hundred eighty-one billion, four hundred eighty million, sixty-seven thousand, three hundred forty".