1266980810674 has 8 divisors (see below), whose sum is σ = 1920063703068. Its totient is φ = 626959576320.

The previous prime is 1266980810657. The next prime is 1266980810707. The reversal of 1266980810674 is 4760180896621.

It can be written as a sum of positive squares in 2 ways, for example, as 1190662880625 + 76317930049 = 1091175^2 + 276257^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×1266980810674² (a number of 25 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3265414267 + ... + 3265414654.

Almost surely, 2^{1266980810674} is an apocalyptic number.

1266980810674 is a deficient number, since it is larger than the sum of its proper divisors (653082892394).

1266980810674 is an equidigital number, since it uses as much as digits as its factorization.

1266980810674 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6530829020.

The product of its (nonzero) digits is 6967296, while the sum is 58.

The spelling of 1266980810674 in words is "one trillion, two hundred sixty-six billion, nine hundred eighty million, eight hundred ten thousand, six hundred seventy-four".