13870528571 has 2 divisors, whose sum is σ = 13870528572. Its totient is φ = 13870528570.

The previous prime is 13870528499. The next prime is 13870528577. The reversal of 13870528571 is 17582507831.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13870528571 - 2¹⁸ = 13870266427 is a prime.

It is not a weakly prime, because it can be changed into another prime (13870528577) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6935264285 + 6935264286.

It is an arithmetic number, because the mean of its divisors is an integer number (6935264286).

Almost surely, 2^13870528571 is an apocalyptic number.

13870528571 is a deficient number, since it is larger than the sum of its proper divisors (1).

13870528571 is an equidigital number, since it uses as much as digits as its factorization.

13870528571 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 470400, while the sum is 47.

The spelling of 13870528571 in words is "thirteen billion, eight hundred seventy million, five hundred twenty-eight thousand, five hundred seventy-one".