68373528453 has 24 divisors (see below), whose sum is σ = 100522596096. Its totient is φ = 44774402400.

The previous prime is 68373528413. The next prime is 68373528479. The reversal of 68373528453 is 35482537386.

It is a happy number.

68373528453 is a `hidden beast` number, since 6 + 8 + 3 + 73 + 528 + 45 + 3 = 666.

It is not a de Polignac number, because 68373528453 - 2⁶ = 68373528389 is a prime.

It is a super-2 number, since 2×68373528453² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 68373528453.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68373528413) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 24250 + ... + 370587.

It is an arithmetic number, because the mean of its divisors is an integer number (4188441504).

Almost surely, 2^68373528453 is an apocalyptic number.

It is an amenable number.

68373528453 is a deficient number, since it is larger than the sum of its proper divisors (32149067643).

68373528453 is a wasteful number, since it uses less digits than its factorization.

68373528453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 395185 (or 395182 counting only the distinct ones).

The product of its digits is 14515200, while the sum is 54.

The spelling of 68373528453 in words is "sixty-eight billion, three hundred seventy-three million, five hundred twenty-eight thousand, four hundred fifty-three".