2782540353949 has 2 divisors, whose sum is σ = 2782540353950. Its totient is φ = 2782540353948.

The previous prime is 2782540353937. The next prime is 2782540353973. The reversal of 2782540353949 is 9493530452872.

It is a happy number.

2782540353949 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2734039101049 + 48501252900 = 1653493^2 + 220230^2 .

It is a cyclic number.

It is not a de Polignac number, because 2782540353949 - 2³¹ = 2780392870301 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2782546353949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1391270176974 + 1391270176975.

It is an arithmetic number, because the mean of its divisors is an integer number (1391270176975).

Almost surely, 2^{2782540353949} is an apocalyptic number.

It is an amenable number.

2782540353949 is a deficient number, since it is larger than the sum of its proper divisors (1).

2782540353949 is an equidigital number, since it uses as much as digits as its factorization.

2782540353949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 65318400, while the sum is 61.

The spelling of 2782540353949 in words is "two trillion, seven hundred eighty-two billion, five hundred forty million, three hundred fifty-three thousand, nine hundred forty-nine".