13872240919 has 2 divisors, whose sum is σ = 13872240920. Its totient is φ = 13872240918.

The previous prime is 13872240901. The next prime is 13872240929. The reversal of 13872240919 is 91904227831.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13872240919 - 2¹³ = 13872232727 is a prime.

It is a super-2 number, since 2×13872240919² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13872240929) 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 as a sum of consecutive naturals, namely, 6936120459 + 6936120460.

It is an arithmetic number, because the mean of its divisors is an integer number (6936120460).

Almost surely, 2^13872240919 is an apocalyptic number.

13872240919 is a deficient number, since it is larger than the sum of its proper divisors (1).

13872240919 is an equidigital number, since it uses as much as digits as its factorization.

13872240919 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 217728, while the sum is 46.

The spelling of 13872240919 in words is "thirteen billion, eight hundred seventy-two million, two hundred forty thousand, nine hundred nineteen".