68798694785 has 16 divisors (see below), whose sum is σ = 85238479872. Its totient is φ = 53252961600.

The previous prime is 68798694761. The next prime is 68798694851. The reversal of 68798694785 is 58749689786.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-68798694785 is a prime.

It is a Duffinian 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, 792812 + ... + 875298.

It is an arithmetic number, because the mean of its divisors is an integer number (5327404992).

Almost surely, 2^68798694785 is an apocalyptic number.

It is an amenable number.

68798694785 is a deficient number, since it is larger than the sum of its proper divisors (16439785087).

68798694785 is a wasteful number, since it uses less digits than its factorization.

68798694785 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87904.

The product of its digits is 1463132160, while the sum is 77.

The spelling of 68798694785 in words is "sixty-eight billion, seven hundred ninety-eight million, six hundred ninety-four thousand, seven hundred eighty-five".