5270815866771 has 128 divisors (see below), whose sum is σ = 10711511193600. Its totient is φ = 2478948986880.

The previous prime is 5270815866751. The next prime is 5270815866853. The reversal of 5270815866771 is 1776685180725.

It is not a de Polignac number, because 5270815866771 - 2¹⁰ = 5270815865747 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a junction number, because it is equal to n+sod(n) for n = 5270815866699 and 5270815866708.

It is not an unprimeable number, because it can be changed into a prime (5270815866751) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2527170 + ... + 4114391.

It is an arithmetic number, because the mean of its divisors is an integer number (83683681200).

Almost surely, 2^{5270815866771} is an apocalyptic number.

5270815866771 is a gapful number since it is divisible by the number (51) formed by its first and last digit.

5270815866771 is an abundant number, since it is smaller than the sum of its proper divisors (5440695326829).

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

5270815866771 is a wasteful number, since it uses less digits than its factorization.

5270815866771 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6641626 (or 6641620 counting only the distinct ones).

The product of its (nonzero) digits is 39513600, while the sum is 63.

The spelling of 5270815866771 in words is "five trillion, two hundred seventy billion, eight hundred fifteen million, eight hundred sixty-six thousand, seven hundred seventy-one".