2780456383253 has 2 divisors, whose sum is σ = 2780456383254. Its totient is φ = 2780456383252.

The previous prime is 2780456383231. The next prime is 2780456383319. The reversal of 2780456383253 is 3523836540872.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2366160762289 + 414295620964 = 1538233^2 + 643658^2 .

It is a cyclic number.

It is not a de Polignac number, because 2780456383253 - 2⁶ = 2780456383189 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2780456383153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1390228191626 + 1390228191627.

It is an arithmetic number, because the mean of its divisors is an integer number (1390228191627).

Almost surely, 2^{2780456383253} is an apocalyptic number.

It is an amenable number.

2780456383253 is a deficient number, since it is larger than the sum of its proper divisors (1).

2780456383253 is an equidigital number, since it uses as much as digits as its factorization.

2780456383253 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 29030400, while the sum is 56.

The spelling of 2780456383253 in words is "two trillion, seven hundred eighty billion, four hundred fifty-six million, three hundred eighty-three thousand, two hundred fifty-three".