16031529427 has 2 divisors, whose sum is σ = 16031529428. Its totient is φ = 16031529426.

The previous prime is 16031529407. The next prime is 16031529439. The reversal of 16031529427 is 72492513061.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 16031529427 - 2³¹ = 13884045779 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 16031529427.

It is not a weakly prime, because it can be changed into another prime (16031529407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8015764713 + 8015764714.

It is an arithmetic number, because the mean of its divisors is an integer number (8015764714).

Almost surely, 2^16031529427 is an apocalyptic number.

16031529427 is a deficient number, since it is larger than the sum of its proper divisors (1).

16031529427 is an equidigital number, since it uses as much as digits as its factorization.

16031529427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 16031529427 in words is "sixteen billion, thirty-one million, five hundred twenty-nine thousand, four hundred twenty-seven".