271453847878656 has 528 divisors, whose sum is σ = 835083427127040. Its totient is φ = 88022123642880.

The previous prime is 271453847878643. The next prime is 271453847878663. The reversal of 271453847878656 is 656878748354172.

271453847878656 is a `hidden beast` number, since 2 + 7 + 1 + 4 + 538 + 4 + 7 + 8 + 78 + 6 + 5 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (81).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3540094525 + ... + 3540171203.

Almost surely, 2^{271453847878656} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 271453847878656, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (417541713563520).

271453847878656 is an abundant number, since it is smaller than the sum of its proper divisors (563629579248384).

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

271453847878656 is an equidigital number, since it uses as much as digits as its factorization.

271453847878656 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77102 (or 77072 counting only the distinct ones).

The product of its digits is 15173222400, while the sum is 81.

The spelling of 271453847878656 in words is "two hundred seventy-one trillion, four hundred fifty-three billion, eight hundred forty-seven million, eight hundred seventy-eight thousand, six hundred fifty-six".