681750177632 has 12 divisors (see below), whose sum is σ = 1342195662276. Its totient is φ = 340875088800.

The previous prime is 681750177613. The next prime is 681750177683. The reversal of 681750177632 is 236771057186.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10652346494 + ... + 10652346557.

It is an arithmetic number, because the mean of its divisors is an integer number (111849638523).

Almost surely, 2^681750177632 is an apocalyptic number.

It is an amenable number.

681750177632 is a deficient number, since it is larger than the sum of its proper divisors (660445484644).

681750177632 is a wasteful number, since it uses less digits than its factorization.

681750177632 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21304693061 (or 21304693053 counting only the distinct ones).

The product of its (nonzero) digits is 2963520, while the sum is 53.

The spelling of 681750177632 in words is "six hundred eighty-one billion, seven hundred fifty million, one hundred seventy-seven thousand, six hundred thirty-two".