68763012626781 has 192 divisors, whose sum is σ = 116129359756800. Its totient is φ = 38747561656320.

The previous prime is 68763012626779. The next prime is 68763012626797. The reversal of 68763012626781 is 18762621036786.

68763012626781 is a `hidden beast` number, since 6 + 8 + 7 + 6 + 301 + 262 + 67 + 8 + 1 = 666.

It is not a de Polignac number, because 68763012626781 - 2¹ = 68763012626779 is a prime.

It is a super-2 number, since 2×68763012626781² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68763012626681) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 56688385731 + ... + 56688386943.

It is an arithmetic number, because the mean of its divisors is an integer number (604840415400).

Almost surely, 2^{68763012626781} is an apocalyptic number.

It is an amenable number.

68763012626781 is a deficient number, since it is larger than the sum of its proper divisors (47366347130019).

68763012626781 is a wasteful number, since it uses less digits than its factorization.

68763012626781 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2516 (or 2513 counting only the distinct ones).

The product of its (nonzero) digits is 48771072, while the sum is 63.

The spelling of 68763012626781 in words is "sixty-eight trillion, seven hundred sixty-three billion, twelve million, six hundred twenty-six thousand, seven hundred eighty-one".