68210426745 has 48 divisors (see below), whose sum is σ = 121465274112. Its totient is φ = 35388990720.

The previous prime is 68210426743. The next prime is 68210426761. The reversal of 68210426745 is 54762401286.

68210426745 is a `hidden beast` number, since 6 + 8 + 210 + 426 + 7 + 4 + 5 = 666.

It is not a de Polignac number, because 68210426745 - 2¹ = 68210426743 is a prime.

It is a super-2 number, since 2×68210426745² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 68210426745.

It is not an unprimeable number, because it can be changed into a prime (68210426743) 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 47 ways as a sum of consecutive naturals, for example, 586944 + ... + 693486.

It is an arithmetic number, because the mean of its divisors is an integer number (2530526544).

Almost surely, 2^68210426745 is an apocalyptic number.

It is an amenable number.

68210426745 is a deficient number, since it is larger than the sum of its proper divisors (53254847367).

68210426745 is a wasteful number, since it uses less digits than its factorization.

68210426745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106942 (or 106939 counting only the distinct ones).

The product of its (nonzero) digits is 645120, while the sum is 45.

The spelling of 68210426745 in words is "sixty-eight billion, two hundred ten million, four hundred twenty-six thousand, seven hundred forty-five".