13435540891 has 2 divisors, whose sum is σ = 13435540892. Its totient is φ = 13435540890.

The previous prime is 13435540883. The next prime is 13435540897. The reversal of 13435540891 is 19804553431.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13435540891 - 2³ = 13435540883 is a prime.

It is not a weakly prime, because it can be changed into another prime (13435540897) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6717770445 + 6717770446.

It is an arithmetic number, because the mean of its divisors is an integer number (6717770446).

Almost surely, 2^13435540891 is an apocalyptic number.

13435540891 is a deficient number, since it is larger than the sum of its proper divisors (1).

13435540891 is an equidigital number, since it uses as much as digits as its factorization.

13435540891 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 13435540891 in words is "thirteen billion, four hundred thirty-five million, five hundred forty thousand, eight hundred ninety-one".