959171473128 has 192 divisors, whose sum is σ = 2813551372800. Its totient is φ = 271480809600.

The previous prime is 959171473123. The next prime is 959171473163. The reversal of 959171473128 is 821374171959.

It is a Cunningham number, because it is equal to 979373²-1.

It is a super-2 number, since 2×959171473128² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (57).

It is not an unprimeable number, because it can be changed into a prime (959171473123) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3795075 + ... + 4039917.

It is an arithmetic number, because the mean of its divisors is an integer number (14653913400).

Almost surely, 2^959171473128 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 959171473128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1406775686400).

959171473128 is an abundant number, since it is smaller than the sum of its proper divisors (1854379899672).

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

959171473128 is a wasteful number, since it uses less digits than its factorization.

959171473128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 244964 (or 244949 counting only the distinct ones).

The product of its digits is 3810240, while the sum is 57.

The spelling of 959171473128 in words is "nine hundred fifty-nine billion, one hundred seventy-one million, four hundred seventy-three thousand, one hundred twenty-eight".