959747430889 has 27 divisors (see below), whose sum is σ = 1047579752709. Its totient is φ = 878878859040.

The previous prime is 959747430881. The next prime is 959747430937. The reversal of 959747430889 is 988034747959.

The square root of 959747430889 is 979667.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 4 ways, for example, as 767735202025 + 192012228864 = 876205^2 + 438192^2 .

It is not a de Polignac number, because 959747430889 - 2³ = 959747430881 is a prime.

It is a super-2 number, since 2×959747430889² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (959747430881) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2279684899 + ... + 2279685319.

Almost surely, 2^959747430889 is an apocalyptic number.

959747430889 is the 979667-th square number.

959747430889 is the 489834-th centered octagonal number.

It is an amenable number.

959747430889 is a deficient number, since it is larger than the sum of its proper divisors (87832321820).

959747430889 is an frugal number, since it uses more digits than its factorization.

959747430889 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226 (or 613 counting only the distinct ones).

The product of its (nonzero) digits is 548674560, while the sum is 73.

The spelling of 959747430889 in words is "nine hundred fifty-nine billion, seven hundred forty-seven million, four hundred thirty thousand, eight hundred eighty-nine".