68954867522 has 6 divisors (see below), whose sum is σ = 103432858329. Its totient is φ = 34477248080.

The previous prime is 68954867521. The next prime is 68954867557. The reversal of 68954867522 is 22576845986.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 65049992401 + 3904875121 = 255049^2 + 62489^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=185681.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68954867521) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 278522 + ... + 464202.

Almost surely, 2^68954867522 is an apocalyptic number.

68954867522 is a deficient number, since it is larger than the sum of its proper divisors (34477990807).

68954867522 is an frugal number, since it uses more digits than its factorization.

68954867522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 371364 (or 185683 counting only the distinct ones).

The product of its digits is 58060800, while the sum is 62.

The spelling of 68954867522 in words is "sixty-eight billion, nine hundred fifty-four million, eight hundred sixty-seven thousand, five hundred twenty-two".