1266925834084 has 9 divisors (see below), whose sum is σ = 2217124149177. Its totient is φ = 633461791464.

The previous prime is 1266925834079. The next prime is 1266925834127. The reversal of 1266925834084 is 4804385296621.

It is a happy number.

The square root of 1266925834084 is 1125578.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 1264324834084 + 2601000000 = 1124422^2 + 51000^2 .

It is a super-2 number, since 2×1266925834084² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 1969762 + ... + 2532550.

Almost surely, 2^{1266925834084} is an apocalyptic number.

1266925834084 is the 1125578-th square number.

It is an amenable number.

1266925834084 is a deficient number, since it is larger than the sum of its proper divisors (950198315093).

1266925834084 is an frugal number, since it uses more digits than its factorization.

1266925834084 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125582 (or 562791 counting only the distinct ones).

The product of its (nonzero) digits is 19906560, while the sum is 58.

The spelling of 1266925834084 in words is "one trillion, two hundred sixty-six billion, nine hundred twenty-five million, eight hundred thirty-four thousand, eighty-four".