617672122480 has 320 divisors, whose sum is σ = 1708328160000. Its totient is φ = 207569682432.

The previous prime is 617672122453. The next prime is 617672122517. The reversal of 617672122480 is 84221276716.

It is a self number, because there is not a number n which added to its sum of digits gives 617672122480.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 290122056 + ... + 290124184.

It is an arithmetic number, because the mean of its divisors is an integer number (5338525500).

Almost surely, 2^617672122480 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 617672122480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (854164080000).

617672122480 is an abundant number, since it is smaller than the sum of its proper divisors (1090656037520).

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

617672122480 is a wasteful number, since it uses less digits than its factorization.

617672122480 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2369 (or 2349 counting only the distinct ones).

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 617672122480 in words is "six hundred seventeen billion, six hundred seventy-two million, one hundred twenty-two thousand, four hundred eighty".