2770706046781 has 2 divisors, whose sum is σ = 2770706046782. Its totient is φ = 2770706046780.

The previous prime is 2770706046767. The next prime is 2770706046833. The reversal of 2770706046781 is 1876406070772.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2758037418756 + 12668628025 = 1660734^2 + 112555^2 .

It is a cyclic number.

It is not a de Polignac number, because 2770706046781 - 2¹⁷ = 2770705915709 is a prime.

It is a super-2 number, since 2×2770706046781² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2770106046781) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1385353023390 + 1385353023391.

It is an arithmetic number, because the mean of its divisors is an integer number (1385353023391).

Almost surely, 2^{2770706046781} is an apocalyptic number.

It is an amenable number.

2770706046781 is a deficient number, since it is larger than the sum of its proper divisors (1).

2770706046781 is an equidigital number, since it uses as much as digits as its factorization.

2770706046781 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5531904, while the sum is 55.

The spelling of 2770706046781 in words is "two trillion, seven hundred seventy billion, seven hundred six million, forty-six thousand, seven hundred eighty-one".