427247279189280 has 2304 divisors, whose sum is σ = 1692235246141440. Its totient is φ = 97230009139200.

The previous prime is 427247279189221. The next prime is 427247279189303. The reversal of 427247279189280 is 82981972742724.

427247279189280 is a `hidden beast` number, since 4 + 2 + 7 + 2 + 472 + 79 + 1 + 8 + 9 + 2 + 80 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a junction number, because it is equal to n+sod(n) for n = 427247279189199 and 427247279189208.

It is an unprimeable number.

It is a polite number, since it can be written in 383 ways as a sum of consecutive naturals, for example, 634839939024 + ... + 634839939696.

It is an arithmetic number, because the mean of its divisors is an integer number (734477103360).

Almost surely, 2^{427247279189280} is an apocalyptic number.

427247279189280 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 427247279189280, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (846117623070720).

427247279189280 is an abundant number, since it is smaller than the sum of its proper divisors (1264987966952160).

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

427247279189280 is a wasteful number, since it uses less digits than its factorization.

427247279189280 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1095 (or 1084 counting only the distinct ones).

The product of its (nonzero) digits is 455196672, while the sum is 72.

The spelling of 427247279189280 in words is "four hundred twenty-seven trillion, two hundred forty-seven billion, two hundred seventy-nine million, one hundred eighty-nine thousand, two hundred eighty".