13905780455 has 16 divisors (see below), whose sum is σ = 19249021440. Its totient is φ = 9446273952.

The previous prime is 13905780451. The next prime is 13905780463. The reversal of 13905780455 is 55408750931.

It is a cyclic number.

It is not a de Polignac number, because 13905780455 - 2² = 13905780451 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13905780451) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1852835 + ... + 1860324.

It is an arithmetic number, because the mean of its divisors is an integer number (1203063840).

Almost surely, 2^13905780455 is an apocalyptic number.

13905780455 is a deficient number, since it is larger than the sum of its proper divisors (5343240985).

13905780455 is a wasteful number, since it uses less digits than its factorization.

13905780455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3713278.

The product of its (nonzero) digits is 756000, while the sum is 47.

The spelling of 13905780455 in words is "thirteen billion, nine hundred five million, seven hundred eighty thousand, four hundred fifty-five".