68494281925 has 12 divisors (see below), whose sum is σ = 84969293760. Its totient is φ = 54771951920.

The previous prime is 68494281923. The next prime is 68494282027. The reversal of 68494281925 is 52918249486.

It is a happy number.

It is not a de Polignac number, because 68494281925 - 2¹ = 68494281923 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 68494281925.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68494281923) 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, 527197 + ... + 644146.

It is an arithmetic number, because the mean of its divisors is an integer number (7080774480).

Almost surely, 2^68494281925 is an apocalyptic number.

It is an amenable number.

68494281925 is a deficient number, since it is larger than the sum of its proper divisors (16475011835).

68494281925 is a wasteful number, since it uses less digits than its factorization.

68494281925 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1173692 (or 1173687 counting only the distinct ones).

The product of its digits is 9953280, while the sum is 58.

The spelling of 68494281925 in words is "sixty-eight billion, four hundred ninety-four million, two hundred eighty-one thousand, nine hundred twenty-five".