2076924991681 has 2 divisors, whose sum is σ = 2076924991682. Its totient is φ = 2076924991680.

The previous prime is 2076924991651. The next prime is 2076924991697. The reversal of 2076924991681 is 1861994296702.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1177919502400 + 899005489281 = 1085320^2 + 948159^2 .

It is a cyclic number.

It is not a de Polignac number, because 2076924991681 - 2¹⁹ = 2076924467393 is a prime.

It is a super-2 number, since 2×2076924991681² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2076924991601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1038462495840 + 1038462495841.

It is an arithmetic number, because the mean of its divisors is an integer number (1038462495841).

Almost surely, 2^{2076924991681} is an apocalyptic number.

It is an amenable number.

2076924991681 is a deficient number, since it is larger than the sum of its proper divisors (1).

2076924991681 is an equidigital number, since it uses as much as digits as its factorization.

2076924991681 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 23514624, while the sum is 64.

The spelling of 2076924991681 in words is "two trillion, seventy-six billion, nine hundred twenty-four million, nine hundred ninety-one thousand, six hundred eighty-one".