2772342427117 has 4 divisors (see below), whose sum is σ = 2935421393436. Its totient is φ = 2609263460800.

The previous prime is 2772342427109. The next prime is 2772342427147. The reversal of 2772342427117 is 7117242432772.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1561827572361 + 1210514854756 = 1249731^2 + 1100234^2 .

It is a cyclic number.

It is not a de Polignac number, because 2772342427117 - 2³ = 2772342427109 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 (2772342427147) 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, 81539483134 + ... + 81539483167.

It is an arithmetic number, because the mean of its divisors is an integer number (733855348359).

Almost surely, 2^{2772342427117} is an apocalyptic number.

It is an amenable number.

2772342427117 is a deficient number, since it is larger than the sum of its proper divisors (163078966319).

2772342427117 is a wasteful number, since it uses less digits than its factorization.

2772342427117 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163078966318.

The product of its digits is 1843968, while the sum is 49.

Adding to 2772342427117 its reverse (7117242432772), we get a palindrome (9889584859889).

The spelling of 2772342427117 in words is "two trillion, seven hundred seventy-two billion, three hundred forty-two million, four hundred twenty-seven thousand, one hundred seventeen".