4917820640 has 24 divisors (see below), whose sum is σ = 11618351640. Its totient is φ = 1967128192.

The previous prime is 4917820577. The next prime is 4917820643. The reversal of 4917820640 is 460287194.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4917820643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15368030 + ... + 15368349.

It is an arithmetic number, because the mean of its divisors is an integer number (484097985).

Almost surely, 2^4917820640 is an apocalyptic number.

4917820640 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4917820640 is an abundant number, since it is smaller than the sum of its proper divisors (6700531000).

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

4917820640 is a wasteful number, since it uses less digits than its factorization.

4917820640 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30736394 (or 30736386 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 41.

The square root of 4917820640 is about 70127.1747612864. The cubic root of 4917820640 is about 1700.5558320861. Note that the first 3 decimals are identical.

The spelling of 4917820640 in words is "four billion, nine hundred seventeen million, eight hundred twenty thousand, six hundred forty".