13953590881 has 2 divisors, whose sum is σ = 13953590882. Its totient is φ = 13953590880.

The previous prime is 13953590821. The next prime is 13953590887. The reversal of 13953590881 is 18809535931.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 8449286400 + 5504304481 = 91920^2 + 74191^2 .

It is a cyclic number.

It is not a de Polignac number, because 13953590881 - 2¹⁷ = 13953459809 is a prime.

It is a super-2 number, since 2×13953590881² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13953590887) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6976795440 + 6976795441.

It is an arithmetic number, because the mean of its divisors is an integer number (6976795441).

Almost surely, 2^13953590881 is an apocalyptic number.

It is an amenable number.

13953590881 is a deficient number, since it is larger than the sum of its proper divisors (1).

13953590881 is an equidigital number, since it uses as much as digits as its factorization.

13953590881 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1166400, while the sum is 52.

The spelling of 13953590881 in words is "thirteen billion, nine hundred fifty-three million, five hundred ninety thousand, eight hundred eighty-one".