68207212698 has 16 divisors (see below), whose sum is σ = 136650852480. Its totient is φ = 22696333056.

The previous prime is 68207212691. The next prime is 68207212751. The reversal of 68207212698 is 89621270286.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 68207212698.

It is not an unprimeable number, because it can be changed into a prime (68207212691) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9847378 + ... + 9854301.

It is an arithmetic number, because the mean of its divisors is an integer number (8540678280).

Almost surely, 2^68207212698 is an apocalyptic number.

68207212698 is an abundant number, since it is smaller than the sum of its proper divisors (68443639782).

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

68207212698 is a wasteful number, since it uses less digits than its factorization.

68207212698 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19702261.

The product of its (nonzero) digits is 1161216, while the sum is 51.

The spelling of 68207212698 in words is "sixty-eight billion, two hundred seven million, two hundred twelve thousand, six hundred ninety-eight".