681088731150 has 48 divisors (see below), whose sum is σ = 1714310527104. Its totient is φ = 178912858080.

The previous prime is 681088731139. The next prime is 681088731151. The reversal of 681088731150 is 51137880186.

It is a self number, because there is not a number n which added to its sum of digits gives 681088731150.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (681088731151) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 33874962 + ... + 33895061.

It is an arithmetic number, because the mean of its divisors is an integer number (35714802648).

Almost surely, 2^681088731150 is an apocalyptic number.

681088731150 is an abundant number, since it is smaller than the sum of its proper divisors (1033221795954).

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

681088731150 is a wasteful number, since it uses less digits than its factorization.

681088731150 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67770105 (or 67770100 counting only the distinct ones).

The product of its (nonzero) digits is 322560, while the sum is 48.

The spelling of 681088731150 in words is "six hundred eighty-one billion, eighty-eight million, seven hundred thirty-one thousand, one hundred fifty".