617640934240 has 48 divisors (see below), whose sum is σ = 1591829139600. Its totient is φ = 224596702720.

The previous prime is 617640934223. The next prime is 617640934243. The reversal of 617640934240 is 42439046716.

617640934240 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (617640934243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 175464415 + ... + 175467934.

It is an arithmetic number, because the mean of its divisors is an integer number (33163107075).

Almost surely, 2^617640934240 is an apocalyptic number.

It is an amenable number.

617640934240 is an abundant number, since it is smaller than the sum of its proper divisors (974188205360).

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

617640934240 is a wasteful number, since it uses less digits than its factorization.

617640934240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 350932375 (or 350932367 counting only the distinct ones).

The product of its (nonzero) digits is 870912, while the sum is 46.

The spelling of 617640934240 in words is "six hundred seventeen billion, six hundred forty million, nine hundred thirty-four thousand, two hundred forty".