68527926619 has 4 divisors (see below), whose sum is σ = 72558981144. Its totient is φ = 64496872096.

The previous prime is 68527926589. The next prime is 68527926647. The reversal of 68527926619 is 91662972586.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 91662972586 = 2 ⋅45831486293.

It is a cyclic number.

It is not a de Polignac number, because 68527926619 - 2¹¹ = 68527924571 is a prime.

It is a super-2 number, since 2×68527926619² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68527926689) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2015527237 + ... + 2015527270.

It is an arithmetic number, because the mean of its divisors is an integer number (18139745286).

Almost surely, 2^68527926619 is an apocalyptic number.

68527926619 is a deficient number, since it is larger than the sum of its proper divisors (4031054525).

68527926619 is a wasteful number, since it uses less digits than its factorization.

68527926619 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4031054524.

The product of its digits is 19595520, while the sum is 61.

The spelling of 68527926619 in words is "sixty-eight billion, five hundred twenty-seven million, nine hundred twenty-six thousand, six hundred nineteen".