47817081220 has 24 divisors (see below), whose sum is σ = 100421443584. Its totient is φ = 19125770976.

The previous prime is 47817081217. The next prime is 47817081223. The reversal of 47817081220 is 2218071874.

It is an interprime number because it is at equal distance from previous prime (47817081217) and next prime (47817081223).

It is not an unprimeable number, because it can be changed into a prime (47817081223) 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, 374467 + ... + 485653.

It is an arithmetic number, because the mean of its divisors is an integer number (4184226816).

Almost surely, 2^47817081220 is an apocalyptic number.

It is an amenable number.

47817081220 is an abundant number, since it is smaller than the sum of its proper divisors (52604362364).

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

47817081220 is a wasteful number, since it uses less digits than its factorization.

47817081220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132699 (or 132697 counting only the distinct ones).

The product of its (nonzero) digits is 50176, while the sum is 40.

The spelling of 47817081220 in words is "forty-seven billion, eight hundred seventeen million, eighty-one thousand, two hundred twenty".