68273146458 has 32 divisors (see below), whose sum is σ = 165510659520. Its totient is φ = 20688832080.

The previous prime is 68273146457. The next prime is 68273146471. The reversal of 68273146458 is 85464137286.

It is a happy number.

68273146458 is a `hidden beast` number, since 6 + 82 + 73 + 1 + 46 + 458 = 666.

It is a super-2 number, since 2×68273146458² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (68273146457) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 57468385 + ... + 57469572.

It is an arithmetic number, because the mean of its divisors is an integer number (5172208110).

Almost surely, 2^68273146458 is an apocalyptic number.

68273146458 is an abundant number, since it is smaller than the sum of its proper divisors (97237513062).

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

68273146458 is a wasteful number, since it uses less digits than its factorization.

68273146458 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114937979 (or 114937973 counting only the distinct ones).

The product of its digits is 7741440, while the sum is 54.

The spelling of 68273146458 in words is "sixty-eight billion, two hundred seventy-three million, one hundred forty-six thousand, four hundred fifty-eight".