217075301473420 has 48 divisors (see below), whose sum is σ = 490925224304928. Its totient is φ = 80150704058880.

The previous prime is 217075301473417. The next prime is 217075301473477. The reversal of 217075301473420 is 24374103570712.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 212464432 + ... + 213483688.

It is an arithmetic number, because the mean of its divisors is an integer number (10227608839686).

Almost surely, 2^{217075301473420} is an apocalyptic number.

217075301473420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

217075301473420 is an abundant number, since it is smaller than the sum of its proper divisors (273849922831508).

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

217075301473420 is a wasteful number, since it uses less digits than its factorization.

217075301473420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1838410 (or 1838408 counting only the distinct ones).

The product of its (nonzero) digits is 987840, while the sum is 46.

The spelling of 217075301473420 in words is "two hundred seventeen trillion, seventy-five billion, three hundred one million, four hundred seventy-three thousand, four hundred twenty".