1229504994413 has 16 divisors (see below), whose sum is σ = 1267084024752. Its totient is φ = 1192294080000.

The previous prime is 1229504994397. The next prime is 1229504994427. The reversal of 1229504994413 is 3144994059221.

It can be written as a sum of positive squares in 8 ways, for example, as 270834894724 + 958670099689 = 520418^2 + 979117^2 .

It is a cyclic number.

It is not a de Polignac number, because 1229504994413 - 2⁴ = 1229504994397 is a prime.

It is a super-2 number, since 2×1229504994413² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1229504994013) 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, 15194963 + ... + 15275663.

It is an arithmetic number, because the mean of its divisors is an integer number (79192751547).

Almost surely, 2^{1229504994413} is an apocalyptic number.

It is an amenable number.

1229504994413 is a deficient number, since it is larger than the sum of its proper divisors (37579030339).

1229504994413 is a wasteful number, since it uses less digits than its factorization.

1229504994413 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82976.

The product of its (nonzero) digits is 2799360, while the sum is 53.

The spelling of 1229504994413 in words is "one trillion, two hundred twenty-nine billion, five hundred four million, nine hundred ninety-four thousand, four hundred thirteen".