8961444915988 has 24 divisors (see below), whose sum is σ = 15903971213760. Its totient is φ = 4417457600640.

The previous prime is 8961444915919. The next prime is 8961444915991. The reversal of 8961444915988 is 8895194441698.

It is a super-2 number, since 2×8961444915988² (a number of 27 digits) contains 22 as substring.

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, 7709820 + ... + 8795692.

It is an arithmetic number, because the mean of its divisors is an integer number (662665467240).

Almost surely, 2^{8961444915988} is an apocalyptic number.

It is an amenable number.

8961444915988 is a deficient number, since it is larger than the sum of its proper divisors (6942526297772).

8961444915988 is a wasteful number, since it uses less digits than its factorization.

8961444915988 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1115007 (or 1115005 counting only the distinct ones).

The product of its digits is 716636160, while the sum is 76.

The spelling of 8961444915988 in words is "eight trillion, nine hundred sixty-one billion, four hundred forty-four million, nine hundred fifteen thousand, nine hundred eighty-eight".