1143264243464 has 24 divisors (see below), whose sum is σ = 2493599307390. Its totient is φ = 489970389888.

The previous prime is 1143264243427. The next prime is 1143264243469. The reversal of 1143264243464 is 4643424623411.

It can be written as a sum of positive squares in only one way, i.e., 922448835364 + 220815408100 = 960442^2 + 469910^2 .

It is not an unprimeable number, because it can be changed into a prime (1143264243469) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1458244817 + ... + 1458245600.

Almost surely, 2^{1143264243464} is an apocalyptic number.

1143264243464 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

1143264243464 is an abundant number, since it is smaller than the sum of its proper divisors (1350335063926).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1143264243464 is a wasteful number, since it uses less digits than its factorization.

1143264243464 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2916490437 (or 2916490426 counting only the distinct ones).

The product of its digits is 1327104, while the sum is 44.

Adding to 1143264243464 its reverse (4643424623411), we get a palindrome (5786688866875).

The spelling of 1143264243464 in words is "one trillion, one hundred forty-three billion, two hundred sixty-four million, two hundred forty-three thousand, four hundred sixty-four".