68089525777691 has 8 divisors (see below), whose sum is σ = 74442019833264. Its totient is φ = 61764121249920.

The previous prime is 68089525777639. The next prime is 68089525777711. The reversal of 68089525777691 is 19677752598086.

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 68089525777691 - 2³⁴ = 68072345908507 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68089525777601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6772376690 + ... + 6772386743.

It is an arithmetic number, because the mean of its divisors is an integer number (9305252479158).

Almost surely, 2^{68089525777691} is an apocalyptic number.

68089525777691 is a deficient number, since it is larger than the sum of its proper divisors (6352494055573).

68089525777691 is a wasteful number, since it uses less digits than its factorization.

68089525777691 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13544763901.

The product of its (nonzero) digits is 3200601600, while the sum is 80.

The spelling of 68089525777691 in words is "sixty-eight trillion, eighty-nine billion, five hundred twenty-five million, seven hundred seventy-seven thousand, six hundred ninety-one".