68704058840 has 64 divisors (see below), whose sum is σ = 155160178560. Its totient is φ = 27379376640.

The previous prime is 68704058821. The next prime is 68704058879. The reversal of 68704058840 is 4885040786.

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, 21328430 + ... + 21331650.

It is an arithmetic number, because the mean of its divisors is an integer number (2424377790).

Almost surely, 2^68704058840 is an apocalyptic number.

It is an amenable number.

68704058840 is an abundant number, since it is smaller than the sum of its proper divisors (86456119720).

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

68704058840 is a wasteful number, since it uses less digits than its factorization.

68704058840 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5052 (or 5048 counting only the distinct ones).

The product of its (nonzero) digits is 1720320, while the sum is 50.

The spelling of 68704058840 in words is "sixty-eight billion, seven hundred four million, fifty-eight thousand, eight hundred forty".