2777428120853 has 2 divisors, whose sum is σ = 2777428120854. Its totient is φ = 2777428120852.

The previous prime is 2777428120787. The next prime is 2777428120861. The reversal of 2777428120853 is 3580218247772.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1822494600004 + 954933520849 = 1349998^2 + 977207^2 .

It is a cyclic number.

It is not a de Polignac number, because 2777428120853 - 2³⁸ = 2502550213909 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2777428122853) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1388714060426 + 1388714060427.

It is an arithmetic number, because the mean of its divisors is an integer number (1388714060427).

Almost surely, 2^{2777428120853} is an apocalyptic number.

It is an amenable number.

2777428120853 is a deficient number, since it is larger than the sum of its proper divisors (1).

2777428120853 is an equidigital number, since it uses as much as digits as its factorization.

2777428120853 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10536960, while the sum is 56.

The spelling of 2777428120853 in words is "two trillion, seven hundred seventy-seven billion, four hundred twenty-eight million, one hundred twenty thousand, eight hundred fifty-three".