68425894493 has 36 divisors (see below), whose sum is σ = 78685228608. Its totient is φ = 59007149520.

The previous prime is 68425894483. The next prime is 68425894507. The reversal of 68425894493 is 39449852486.

It is not a de Polignac number, because 68425894493 - 2¹⁶ = 68425828957 is a prime.

It is a Smith number, since the sum of its digits (62) coincides with the sum of the digits of its prime factors.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68425894423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 186446396 + ... + 186446762.

Almost surely, 2^68425894493 is an apocalyptic number.

It is an amenable number.

68425894493 is a deficient number, since it is larger than the sum of its proper divisors (10259334115).

68425894493 is a wasteful number, since it uses less digits than its factorization.

68425894493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782 (or 580 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 62.

The spelling of 68425894493 in words is "sixty-eight billion, four hundred twenty-five million, eight hundred ninety-four thousand, four hundred ninety-three".