13403563783 has 2 divisors, whose sum is σ = 13403563784. Its totient is φ = 13403563782.

The previous prime is 13403563777. The next prime is 13403563801. The reversal of 13403563783 is 38736530431.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 13403563783 - 2²⁵ = 13370009351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13403573783) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6701781891 + 6701781892.

It is an arithmetic number, because the mean of its divisors is an integer number (6701781892).

Almost surely, 2^13403563783 is an apocalyptic number.

13403563783 is a deficient number, since it is larger than the sum of its proper divisors (1).

13403563783 is an equidigital number, since it uses as much as digits as its factorization.

13403563783 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 544320, while the sum is 43.

The spelling of 13403563783 in words is "thirteen billion, four hundred three million, five hundred sixty-three thousand, seven hundred eighty-three".