13247770455 has 64 divisors (see below), whose sum is σ = 25517099520. Its totient is φ = 6495164928.

The previous prime is 13247770451. The next prime is 13247770537. The reversal of 13247770455 is 55407774231.

13247770455 is a `hidden beast` number, since 132 + 477 + 7 + 0 + 45 + 5 = 666.

It is not a de Polignac number, because 13247770455 - 2² = 13247770451 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 13247770455.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13247770451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31564 + ... + 165806.

It is an arithmetic number, because the mean of its divisors is an integer number (398704680).

Almost surely, 2^13247770455 is an apocalyptic number.

13247770455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

13247770455 is a deficient number, since it is larger than the sum of its proper divisors (12269329065).

13247770455 is a wasteful number, since it uses less digits than its factorization.

13247770455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134317 (or 134311 counting only the distinct ones).

The product of its (nonzero) digits is 823200, while the sum is 45.

The spelling of 13247770455 in words is "thirteen billion, two hundred forty-seven million, seven hundred seventy thousand, four hundred fifty-five".