1123861481564 has 24 divisors (see below), whose sum is σ = 1984432277520. Its totient is φ = 556882183424.

The previous prime is 1123861481531. The next prime is 1123861481579. The reversal of 1123861481564 is 4651841683211.

It is a super-2 number, since 2×1123861481564² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 3235142 + ... + 3565650.

It is an arithmetic number, because the mean of its divisors is an integer number (82684678230).

Almost surely, 2^{1123861481564} is an apocalyptic number.

It is an amenable number.

1123861481564 is a deficient number, since it is larger than the sum of its proper divisors (860570795956).

1123861481564 is a wasteful number, since it uses less digits than its factorization.

1123861481564 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 338149 (or 338147 counting only the distinct ones).

The product of its digits is 1105920, while the sum is 50.

The spelling of 1123861481564 in words is "one trillion, one hundred twenty-three billion, eight hundred sixty-one million, four hundred eighty-one thousand, five hundred sixty-four".