68954867523 has 12 divisors (see below), whose sum is σ = 99925914088. Its totient is φ = 45820170720.

The previous prime is 68954867521. The next prime is 68954867557. The reversal of 68954867523 is 32576845986.

It is a happy number.

68954867523 is a `hidden beast` number, since 6 + 8 + 9 + 5 + 48 + 67 + 523 = 666.

It is not a de Polignac number, because 68954867523 - 2¹ = 68954867521 is a prime.

It is a super-2 number, since 2×68954867523² (a number of 22 digits) contains 22 as substring.

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 11 ways as a sum of consecutive naturals, for example, 12475498 + ... + 12481023.

Almost surely, 2^68954867523 is an apocalyptic number.

68954867523 is a deficient number, since it is larger than the sum of its proper divisors (30971046565).

68954867523 is a wasteful number, since it uses less digits than its factorization.

68954867523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24956834 (or 24956831 counting only the distinct ones).

The product of its digits is 87091200, while the sum is 63.

The spelling of 68954867523 in words is "sixty-eight billion, nine hundred fifty-four million, eight hundred sixty-seven thousand, five hundred twenty-three".