1589728997964 has 24 divisors (see below), whose sum is σ = 3711219624000. Its totient is φ = 529645099984.

The previous prime is 1589728997917. The next prime is 1589728997993. The reversal of 1589728997964 is 4697998279851.

It is a happy number.

It is a super-2 number, since 2×1589728997964² (a number of 25 digits) contains 22 as substring.

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, 33045714 + ... + 33093785.

It is an arithmetic number, because the mean of its divisors is an integer number (154634151000).

Almost surely, 2^{1589728997964} is an apocalyptic number.

It is an amenable number.

1589728997964 is an abundant number, since it is smaller than the sum of its proper divisors (2121490626036).

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

1589728997964 is a wasteful number, since it uses less digits than its factorization.

1589728997964 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66141509 (or 66141507 counting only the distinct ones).

The product of its digits is 4938071040, while the sum is 84.

The spelling of 1589728997964 in words is "one trillion, five hundred eighty-nine billion, seven hundred twenty-eight million, nine hundred ninety-seven thousand, nine hundred sixty-four".