68422881737 has 4 divisors (see below), whose sum is σ = 78197579136. Its totient is φ = 58648184340.

The previous prime is 68422881731. The next prime is 68422881743. The reversal of 68422881737 is 73718822486.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (68422881731) and next prime (68422881743).

It is a cyclic number.

It is not a de Polignac number, because 68422881737 - 2⁴ = 68422881721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (68422881731) 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, 4887348689 + ... + 4887348702.

It is an arithmetic number, because the mean of its divisors is an integer number (19549394784).

Almost surely, 2^68422881737 is an apocalyptic number.

It is an amenable number.

68422881737 is a deficient number, since it is larger than the sum of its proper divisors (9774697399).

68422881737 is an equidigital number, since it uses as much as digits as its factorization.

68422881737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9774697398.

The product of its digits is 7225344, while the sum is 56.

The spelling of 68422881737 in words is "sixty-eight billion, four hundred twenty-two million, eight hundred eighty-one thousand, seven hundred thirty-seven".