271617440021 has 4 divisors (see below), whose sum is σ = 271618761312. Its totient is φ = 271616118732.

The previous prime is 271617439913. The next prime is 271617440047. The reversal of 271617440021 is 120044716172.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 271617440021 - 2³⁴ = 254437570837 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (271617440621) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 278675 + ... + 787968.

It is an arithmetic number, because the mean of its divisors is an integer number (67904690328).

Almost surely, 2^271617440021 is an apocalyptic number.

It is an amenable number.

271617440021 is a deficient number, since it is larger than the sum of its proper divisors (1321291).

271617440021 is a wasteful number, since it uses less digits than its factorization.

271617440021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1321290.

The product of its (nonzero) digits is 18816, while the sum is 35.

The spelling of 271617440021 in words is "two hundred seventy-one billion, six hundred seventeen million, four hundred forty thousand, twenty-one".