13901999827 has 2 divisors, whose sum is σ = 13901999828. Its totient is φ = 13901999826.

The previous prime is 13901999807. The next prime is 13901999831. The reversal of 13901999827 is 72899910931.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13901999827 - 2¹⁵ = 13901967059 is a prime.

It is not a weakly prime, because it can be changed into another prime (13901999807) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6950999913 + 6950999914.

It is an arithmetic number, because the mean of its divisors is an integer number (6950999914).

Almost surely, 2^13901999827 is an apocalyptic number.

13901999827 is a deficient number, since it is larger than the sum of its proper divisors (1).

13901999827 is an equidigital number, since it uses as much as digits as its factorization.

13901999827 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2204496, while the sum is 58.

The spelling of 13901999827 in words is "thirteen billion, nine hundred one million, nine hundred ninety-nine thousand, eight hundred twenty-seven".