1249966211339 has 8 divisors (see below), whose sum is σ = 1254868167168. Its totient is φ = 1245069648360.

The previous prime is 1249966211311. The next prime is 1249966211369. The reversal of 1249966211339 is 9331126699421.

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

It is a cyclic number.

It is not a de Polignac number, because 1249966211339 - 2¹⁶ = 1249966145803 is a prime.

It is a super-2 number, since 2×1249966211339² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1249966211369) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 883427 + ... + 1811180.

It is an arithmetic number, because the mean of its divisors is an integer number (156858520896).

Almost surely, 2^{1249966211339} is an apocalyptic number.

1249966211339 is a deficient number, since it is larger than the sum of its proper divisors (4901955829).

1249966211339 is a wasteful number, since it uses less digits than its factorization.

1249966211339 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2696425.

The product of its digits is 3779136, while the sum is 56.

The spelling of 1249966211339 in words is "one trillion, two hundred forty-nine billion, nine hundred sixty-six million, two hundred eleven thousand, three hundred thirty-nine".