1143912447956 has 24 divisors (see below), whose sum is σ = 2014317144840. Its totient is φ = 568397692800.

The previous prime is 1143912447943. The next prime is 1143912448009. The reversal of 1143912447956 is 6597442193411.

It can be written as a sum of positive squares in 4 ways, for example, as 212428810000 + 931483637956 = 460900^2 + 965134^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 481766 + ... + 1587426.

It is an arithmetic number, because the mean of its divisors is an integer number (83929881035).

Almost surely, 2^{1143912447956} is an apocalyptic number.

It is an amenable number.

1143912447956 is a deficient number, since it is larger than the sum of its proper divisors (870404696884).

1143912447956 is a wasteful number, since it uses less digits than its factorization.

1143912447956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1107275 (or 1107273 counting only the distinct ones).

The product of its digits is 6531840, while the sum is 56.

The spelling of 1143912447956 in words is "one trillion, one hundred forty-three billion, nine hundred twelve million, four hundred forty-seven thousand, nine hundred fifty-six".