271478428020 has 72 divisors (see below), whose sum is σ = 831039529320. Its totient is φ = 71730074880.

The previous prime is 271478428009. The next prime is 271478428033. The reversal of 271478428020 is 20824874172.

271478428020 is a `hidden beast` number, since 271 + 4 + 7 + 84 + 280 + 20 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 65251637136 + 206226790884 = 255444^2 + 454122^2 .

It is a super-2 number, since 2×271478428020² (a number of 24 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6898791 + ... + 6938030.

It is an arithmetic number, because the mean of its divisors is an integer number (11542215685).

Almost surely, 2^271478428020 is an apocalyptic number.

271478428020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

271478428020 is an abundant number, since it is smaller than the sum of its proper divisors (559561101300).

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

271478428020 is a wasteful number, since it uses less digits than its factorization.

271478428020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13836945 (or 13836940 counting only the distinct ones).

The product of its (nonzero) digits is 401408, while the sum is 45.

The spelling of 271478428020 in words is "two hundred seventy-one billion, four hundred seventy-eight million, four hundred twenty-eight thousand, twenty".