68707844415 has 24 divisors (see below), whose sum is σ = 136106968608. Its totient is φ = 31409300160.

The previous prime is 68707844407. The next prime is 68707844417. The reversal of 68707844415 is 51444870786.

68707844415 is a `hidden beast` number, since 68 + 70 + 78 + 4 + 441 + 5 = 666.

It is not a de Polignac number, because 68707844415 - 2³ = 68707844407 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68707844417) 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, 109059756 + ... + 109060385.

It is an arithmetic number, because the mean of its divisors is an integer number (5671123692).

Almost surely, 2^68707844415 is an apocalyptic number.

68707844415 is a deficient number, since it is larger than the sum of its proper divisors (67399124193).

68707844415 is a wasteful number, since it uses less digits than its factorization.

68707844415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 218120159 (or 218120156 counting only the distinct ones).

The product of its (nonzero) digits is 6021120, while the sum is 54.

The spelling of 68707844415 in words is "sixty-eight billion, seven hundred seven million, eight hundred forty-four thousand, four hundred fifteen".