68227129453 has 12 divisors (see below), whose sum is σ = 79392304992. Its totient is φ = 58461200280.

The previous prime is 68227129441. The next prime is 68227129457. The reversal of 68227129453 is 35492172286.

It is a happy number.

It is not a de Polignac number, because 68227129453 - 2¹⁷ = 68226998381 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a junction number, because it is equal to n+sod(n) for n = 68227129397 and 68227129406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68227129457) 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, 76713 + ... + 377278.

It is an arithmetic number, because the mean of its divisors is an integer number (6616025416).

Almost surely, 2^68227129453 is an apocalyptic number.

It is an amenable number.

68227129453 is a deficient number, since it is larger than the sum of its proper divisors (11165175539).

68227129453 is a wasteful number, since it uses less digits than its factorization.

68227129453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 457072 (or 457065 counting only the distinct ones).

The product of its digits is 1451520, while the sum is 49.

The spelling of 68227129453 in words is "sixty-eight billion, two hundred twenty-seven million, one hundred twenty-nine thousand, four hundred fifty-three".