2767214265661 has 2 divisors, whose sum is σ = 2767214265662. Its totient is φ = 2767214265660.

The previous prime is 2767214265649. The next prime is 2767214265671. The reversal of 2767214265661 is 1665624127672.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2461619792025 + 305594473636 = 1568955^2 + 552806^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2767214265661 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2767214265611) 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, 1383607132830 + 1383607132831.

It is an arithmetic number, because the mean of its divisors is an integer number (1383607132831).

Almost surely, 2^{2767214265661} is an apocalyptic number.

It is an amenable number.

2767214265661 is a deficient number, since it is larger than the sum of its proper divisors (1).

2767214265661 is an equidigital number, since it uses as much as digits as its factorization.

2767214265661 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10160640, while the sum is 55.

The spelling of 2767214265661 in words is "two trillion, seven hundred sixty-seven billion, two hundred fourteen million, two hundred sixty-five thousand, six hundred sixty-one".