68013773 has 4 divisors (see below), whose sum is σ = 68032608. Its totient is φ = 67994940.

The previous prime is 68013731. The next prime is 68013791. The reversal of 68013773 is 37731086.

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 a cyclic number.

It is not a de Polignac number, because 68013773 - 2²⁴ = 51236557 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68013973) 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, 2111 + ... + 11852.

It is an arithmetic number, because the mean of its divisors is an integer number (17008152).

Almost surely, 2^68013773 is an apocalyptic number.

It is an amenable number.

68013773 is a deficient number, since it is larger than the sum of its proper divisors (18835).

68013773 is a wasteful number, since it uses less digits than its factorization.

68013773 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18834.

The product of its (nonzero) digits is 21168, while the sum is 35.

The square root of 68013773 is about 8247.0463197438. The cubic root of 68013773 is about 408.1930655058.

It can be divided in two parts, 68013 and 773, that added together give a palindrome (68786).

The spelling of 68013773 in words is "sixty-eight million, thirteen thousand, seven hundred seventy-three".