13238775418 has 16 divisors (see below), whose sum is σ = 21710870784. Its totient is φ = 6004452960.

The previous prime is 13238775383. The next prime is 13238775469. The reversal of 13238775418 is 81457783231.

It is a happy number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 648330 + ... + 668437.

It is an arithmetic number, because the mean of its divisors is an integer number (1356929424).

Almost surely, 2^13238775418 is an apocalyptic number.

13238775418 is a deficient number, since it is larger than the sum of its proper divisors (8472095366).

13238775418 is a wasteful number, since it uses less digits than its factorization.

13238775418 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317237.

The product of its digits is 1128960, while the sum is 49.

The spelling of 13238775418 in words is "thirteen billion, two hundred thirty-eight million, seven hundred seventy-five thousand, four hundred eighteen".