2778014513 has 2 divisors, whose sum is σ = 2778014514. Its totient is φ = 2778014512.

The previous prime is 2778014509. The next prime is 2778014521. The reversal of 2778014513 is 3154108772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1688552464 + 1089462049 = 41092^2 + 33007^2 .

It is a cyclic number.

It is not a de Polignac number, because 2778014513 - 2² = 2778014509 is a prime.

It is not a weakly prime, because it can be changed into another prime (2778014593) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1389007256 + 1389007257.

It is an arithmetic number, because the mean of its divisors is an integer number (1389007257).

Almost surely, 2^2778014513 is an apocalyptic number.

It is an amenable number.

2778014513 is a deficient number, since it is larger than the sum of its proper divisors (1).

2778014513 is an equidigital number, since it uses as much as digits as its factorization.

2778014513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47040, while the sum is 38.

The square root of 2778014513 is about 52706.8734891380. The cubic root of 2778014513 is about 1405.7610417457.

The spelling of 2778014513 in words is "two billion, seven hundred seventy-eight million, fourteen thousand, five hundred thirteen".