964144427444 has 36 divisors (see below), whose sum is σ = 1862279192004. Its totient is φ = 436428960000.

The previous prime is 964144427399. The next prime is 964144427471. The reversal of 964144427444 is 444724441469.

It can be written as a sum of positive squares in 2 ways, for example, as 651148935844 + 312995491600 = 806938^2 + 559460^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4016207 + ... + 4249494.

Almost surely, 2^964144427444 is an apocalyptic number.

It is an amenable number.

964144427444 is a deficient number, since it is larger than the sum of its proper divisors (898134764560).

964144427444 is a wasteful number, since it uses less digits than its factorization.

964144427444 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8265968 (or 8265955 counting only the distinct ones).

The product of its digits is 12386304, while the sum is 53.

The spelling of 964144427444 in words is "nine hundred sixty-four billion, one hundred forty-four million, four hundred twenty-seven thousand, four hundred forty-four".