1144861629631 has 32 divisors (see below), whose sum is σ = 1222622553600. Its totient is φ = 1068314158080.

The previous prime is 1144861629629. The next prime is 1144861629673. The reversal of 1144861629631 is 1369261684411.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1144861629631 - 2¹ = 1144861629629 is a prime.

It is a super-2 number, since 2×1144861629631² (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 (1144861626631) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1411666216 + ... + 1411667026.

It is an arithmetic number, because the mean of its divisors is an integer number (38206954800).

Almost surely, 2^{1144861629631} is an apocalyptic number.

1144861629631 is a deficient number, since it is larger than the sum of its proper divisors (77760923969).

1144861629631 is a wasteful number, since it uses less digits than its factorization.

1144861629631 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2239.

The product of its digits is 1492992, while the sum is 52.

The spelling of 1144861629631 in words is "one trillion, one hundred forty-four billion, eight hundred sixty-one million, six hundred twenty-nine thousand, six hundred thirty-one".