2773723631242 has 4 divisors (see below), whose sum is σ = 4160585446866. Its totient is φ = 1386861815620.

The previous prime is 2773723631221. The next prime is 2773723631243. The reversal of 2773723631242 is 2421363273772.

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

It can be written as a sum of positive squares in only one way, i.e., 1689586625281 + 1084137005961 = 1299841^2 + 1041219^2 .

It is not an unprimeable number, because it can be changed into a prime (2773723631243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 693430907809 + ... + 693430907812.

Almost surely, 2^{2773723631242} is an apocalyptic number.

2773723631242 is a deficient number, since it is larger than the sum of its proper divisors (1386861815624).

2773723631242 is a wasteful number, since it uses less digits than its factorization.

2773723631242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1386861815623.

The product of its digits is 3556224, while the sum is 49.

The spelling of 2773723631242 in words is "two trillion, seven hundred seventy-three billion, seven hundred twenty-three million, six hundred thirty-one thousand, two hundred forty-two".