11631829465 has 12 divisors (see below), whose sum is σ = 14169663396. Its totient is φ = 9166558368.

The previous prime is 11631829463. The next prime is 11631829481. The reversal of 11631829465 is 56492813611.

It can be written as a sum of positive squares in 2 ways, for example, as 3857527881 + 7774301584 = 62109^2 + 88172^2 .

It is not a de Polignac number, because 11631829465 - 2¹ = 11631829463 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11631829463) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 236674 + ... + 281563.

It is an arithmetic number, because the mean of its divisors is an integer number (1180805283).

Almost surely, 2^11631829465 is an apocalyptic number.

It is an amenable number.

11631829465 is a deficient number, since it is larger than the sum of its proper divisors (2537833931).

11631829465 is an frugal number, since it uses more digits than its factorization.

11631829465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 518376 (or 518309 counting only the distinct ones).

The product of its digits is 311040, while the sum is 46.

The spelling of 11631829465 in words is "eleven billion, six hundred thirty-one million, eight hundred twenty-nine thousand, four hundred sixty-five".