4917257209920 has 224 divisors, whose sum is σ = 17580998209536. Its totient is φ = 1153608652800.

The previous prime is 4917257209877. The next prime is 4917257209937. The reversal of 4917257209920 is 299027527194.

It is a super-3 number, since 3×4917257209920³ (a number of 39 digits) contains 333 as substring.

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, 7183114 + ... + 7837833.

Almost surely, 2^{4917257209920} is an apocalyptic number.

4917257209920 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

4917257209920 is an abundant number, since it is smaller than the sum of its proper divisors (12663740999616).

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

4917257209920 is a wasteful number, since it uses less digits than its factorization.

4917257209920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15021009 (or 15020999 counting only the distinct ones).

The product of its (nonzero) digits is 5715360, while the sum is 57.

The spelling of 4917257209920 in words is "four trillion, nine hundred seventeen billion, two hundred fifty-seven million, two hundred nine thousand, nine hundred twenty".