2666860037431 has 2 divisors, whose sum is σ = 2666860037432. Its totient is φ = 2666860037430.

The previous prime is 2666860037423. The next prime is 2666860037441. The reversal of 2666860037431 is 1347300686662.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2666860037431 - 2³ = 2666860037423 is a prime.

It is a super-2 number, since 2×2666860037431² (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 (2666860037441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1333430018715 + 1333430018716.

It is an arithmetic number, because the mean of its divisors is an integer number (1333430018716).

Almost surely, 2^{2666860037431} is an apocalyptic number.

2666860037431 is a deficient number, since it is larger than the sum of its proper divisors (1).

2666860037431 is an equidigital number, since it uses as much as digits as its factorization.

2666860037431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5225472, while the sum is 52.

The spelling of 2666860037431 in words is "two trillion, six hundred sixty-six billion, eight hundred sixty million, thirty-seven thousand, four hundred thirty-one".