617000004920 has 64 divisors (see below), whose sum is σ = 1495130253120. Its totient is φ = 227801401344.

The previous prime is 617000004883. The next prime is 617000004923. The reversal of 617000004920 is 29400000716.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (617000004923) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12764237 + ... + 12812483.

It is an arithmetic number, because the mean of its divisors is an integer number (23361410205).

Almost surely, 2^617000004920 is an apocalyptic number.

It is an amenable number.

617000004920 is an abundant number, since it is smaller than the sum of its proper divisors (878130248200).

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

617000004920 is a wasteful number, since it uses less digits than its factorization.

617000004920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72864 (or 72860 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 29.

The spelling of 617000004920 in words is "six hundred seventeen billion, four thousand, nine hundred twenty".