13628825531 has 2 divisors, whose sum is σ = 13628825532. Its totient is φ = 13628825530.

The previous prime is 13628825479. The next prime is 13628825543. The reversal of 13628825531 is 13552882631.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13628825531 - 2¹⁴ = 13628809147 is a prime.

It is a super-2 number, since 2×13628825531² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13628825131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6814412765 + 6814412766.

It is an arithmetic number, because the mean of its divisors is an integer number (6814412766).

Almost surely, 2^13628825531 is an apocalyptic number.

13628825531 is a deficient number, since it is larger than the sum of its proper divisors (1).

13628825531 is an equidigital number, since it uses as much as digits as its factorization.

13628825531 is an evil number, because the sum of its binary digits is even.

The product of its digits is 345600, while the sum is 44.

The spelling of 13628825531 in words is "thirteen billion, six hundred twenty-eight million, eight hundred twenty-five thousand, five hundred thirty-one".