1236483952729 has 27 divisors (see below), whose sum is σ = 1288340340511. Its totient is φ = 1186697585600.

The previous prime is 1236483952721. The next prime is 1236483952777. The reversal of 1236483952729 is 9272593846321.

It is a happy number.

The square root of 1236483952729 is 1111973.

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., 1224180706329 + 12303246400 = 1106427^2 + 110920^2 .

It is not a de Polignac number, because 1236483952729 - 2³ = 1236483952721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1236483952721) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 3083500929 + ... + 3083501329.

Almost surely, 2^{1236483952729} is an apocalyptic number.

1236483952729 is the 1111973-rd square number.

1236483952729 is the 555987-th centered octagonal number.

It is an amenable number.

1236483952729 is a deficient number, since it is larger than the sum of its proper divisors (51856387782).

1236483952729 is an frugal number, since it uses more digits than its factorization.

1236483952729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1014 (or 507 counting only the distinct ones).

The product of its digits is 39191040, while the sum is 61.

The spelling of 1236483952729 in words is "one trillion, two hundred thirty-six billion, four hundred eighty-three million, nine hundred fifty-two thousand, seven hundred twenty-nine".