11899697527 has 2 divisors, whose sum is σ = 11899697528. Its totient is φ = 11899697526.

The previous prime is 11899697507. The next prime is 11899697531. The reversal of 11899697527 is 72579699811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11899697527 - 2¹⁵ = 11899664759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11899697507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5949848763 + 5949848764.

It is an arithmetic number, because the mean of its divisors is an integer number (5949848764).

Almost surely, 2^11899697527 is an apocalyptic number.

11899697527 is a deficient number, since it is larger than the sum of its proper divisors (1).

11899697527 is an equidigital number, since it uses as much as digits as its factorization.

11899697527 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17146080, while the sum is 64.

The spelling of 11899697527 in words is "eleven billion, eight hundred ninety-nine million, six hundred ninety-seven thousand, five hundred twenty-seven".