1266462089871 has 16 divisors (see below), whose sum is σ = 1856188718208. Its totient is φ = 761693597600.

The previous prime is 1266462089857. The next prime is 1266462089887. The reversal of 1266462089871 is 1789802646621.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1266462089871 - 2¹³ = 1266462081679 is a prime.

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1266462089801) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 146475216 + ... + 146483861.

It is an arithmetic number, because the mean of its divisors is an integer number (116011794888).

Almost surely, 2^{1266462089871} is an apocalyptic number.

1266462089871 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1266462089871 is a deficient number, since it is larger than the sum of its proper divisors (589726628337).

1266462089871 is a wasteful number, since it uses less digits than its factorization.

1266462089871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 292959222.

The product of its (nonzero) digits is 13934592, while the sum is 60.

The spelling of 1266462089871 in words is "one trillion, two hundred sixty-six billion, four hundred sixty-two million, eighty-nine thousand, eight hundred seventy-one".