170978237628 has 96 divisors (see below), whose sum is σ = 459120372480. Its totient is φ = 48977856000.

The previous prime is 170978237603. The next prime is 170978237657. The reversal of 170978237628 is 826732879071.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1082248 + ... + 1230128.

It is an arithmetic number, because the mean of its divisors is an integer number (4782503880).

Almost surely, 2^170978237628 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 170978237628, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (229560186240).

170978237628 is an abundant number, since it is smaller than the sum of its proper divisors (288142134852).

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

170978237628 is a wasteful number, since it uses less digits than its factorization.

170978237628 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148379 (or 148377 counting only the distinct ones).

The product of its (nonzero) digits is 14224896, while the sum is 60.

The spelling of 170978237628 in words is "one hundred seventy billion, nine hundred seventy-eight million, two hundred thirty-seven thousand, six hundred twenty-eight".