68001140737 has 4 divisors (see below), whose sum is σ = 68001702916. Its totient is φ = 68000578560.

The previous prime is 68001140689. The next prime is 68001140741. The reversal of 68001140737 is 73704110086.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 44564898816 + 23436241921 = 211104^2 + 153089^2 .

It is a cyclic number.

It is not a de Polignac number, because 68001140737 - 2⁷ = 68001140609 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 68001140696 and 68001140705.

It is not an unprimeable number, because it can be changed into a prime (68001140747) 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, 16848 + ... + 369169.

It is an arithmetic number, because the mean of its divisors is an integer number (17000425729).

Almost surely, 2^68001140737 is an apocalyptic number.

It is an amenable number.

68001140737 is a deficient number, since it is larger than the sum of its proper divisors (562179).

68001140737 is a wasteful number, since it uses less digits than its factorization.

68001140737 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 562178.

The product of its (nonzero) digits is 28224, while the sum is 37.

The spelling of 68001140737 in words is "sixty-eight billion, one million, one hundred forty thousand, seven hundred thirty-seven".