2773993078069 has 2 divisors, whose sum is σ = 2773993078070. Its totient is φ = 2773993078068.

The previous prime is 2773993078063. The next prime is 2773993078081. The reversal of 2773993078069 is 9608703993772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2694564929169 + 79428148900 = 1641513^2 + 281830^2 .

It is a cyclic number.

It is not a de Polignac number, because 2773993078069 - 2³ = 2773993078061 is a prime.

It is a super-2 number, since 2×2773993078069² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2773993077989 and 2773993078007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2773993078061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1386996539034 + 1386996539035.

It is an arithmetic number, because the mean of its divisors is an integer number (1386996539035).

Almost surely, 2^{2773993078069} is an apocalyptic number.

It is an amenable number.

2773993078069 is a deficient number, since it is larger than the sum of its proper divisors (1).

2773993078069 is an equidigital number, since it uses as much as digits as its factorization.

2773993078069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216040608, while the sum is 70.

The spelling of 2773993078069 in words is "two trillion, seven hundred seventy-three billion, nine hundred ninety-three million, seventy-eight thousand, sixty-nine".