68807948240 has 80 divisors (see below), whose sum is σ = 172505833920. Its totient is φ = 25438602240.

The previous prime is 68807948233. The next prime is 68807948257. The reversal of 68807948240 is 4284970886.

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 489734 + ... + 614373.

It is an arithmetic number, because the mean of its divisors is an integer number (2156322924).

Almost surely, 2^68807948240 is an apocalyptic number.

It is an amenable number.

68807948240 is an abundant number, since it is smaller than the sum of its proper divisors (103697885680).

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

68807948240 is a wasteful number, since it uses less digits than its factorization.

68807948240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1104180 (or 1104174 counting only the distinct ones).

The product of its (nonzero) digits is 6193152, while the sum is 56.

The spelling of 68807948240 in words is "sixty-eight billion, eight hundred seven million, nine hundred forty-eight thousand, two hundred forty".