68087919563 has 8 divisors (see below), whose sum is σ = 72095465232. Its totient is φ = 64080637696.

The previous prime is 68087919553. The next prime is 68087919619. The reversal of 68087919563 is 36591978086.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 68087919563 - 2⁶ = 68087919499 is a prime.

It is a super-2 number, since 2×68087919563² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68087919496 and 68087919505.

It is not an unprimeable number, because it can be changed into a prime (68087919553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 763856 + ... + 848322.

It is an arithmetic number, because the mean of its divisors is an integer number (9011933154).

Almost surely, 2^68087919563 is an apocalyptic number.

68087919563 is a deficient number, since it is larger than the sum of its proper divisors (4007545669).

68087919563 is a wasteful number, since it uses less digits than its factorization.

68087919563 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131901.

The product of its (nonzero) digits is 19595520, while the sum is 62.

The spelling of 68087919563 in words is "sixty-eight billion, eighty-seven million, nine hundred nineteen thousand, five hundred sixty-three".