13404265487 has 2 divisors, whose sum is σ = 13404265488. Its totient is φ = 13404265486.

The previous prime is 13404265409. The next prime is 13404265493. The reversal of 13404265487 is 78456240431.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13404265487 - 2²⁸ = 13135830031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13404265387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6702132743 + 6702132744.

It is an arithmetic number, because the mean of its divisors is an integer number (6702132744).

Almost surely, 2^13404265487 is an apocalyptic number.

13404265487 is a deficient number, since it is larger than the sum of its proper divisors (1).

13404265487 is an equidigital number, since it uses as much as digits as its factorization.

13404265487 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 645120, while the sum is 44.

The spelling of 13404265487 in words is "thirteen billion, four hundred four million, two hundred sixty-five thousand, four hundred eighty-seven".