15468109421 has 2 divisors, whose sum is σ = 15468109422. Its totient is φ = 15468109420.

The previous prime is 15468109411. The next prime is 15468109441. The reversal of 15468109421 is 12490186451.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 15467896900 + 212521 = 124370^2 + 461^2 .

It is a cyclic number.

It is not a de Polignac number, because 15468109421 - 2¹⁴ = 15468093037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15468109411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7734054710 + 7734054711.

It is an arithmetic number, because the mean of its divisors is an integer number (7734054711).

Almost surely, 2^15468109421 is an apocalyptic number.

It is an amenable number.

15468109421 is a deficient number, since it is larger than the sum of its proper divisors (1).

15468109421 is an equidigital number, since it uses as much as digits as its factorization.

15468109421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 69120, while the sum is 41.

The spelling of 15468109421 in words is "fifteen billion, four hundred sixty-eight million, one hundred nine thousand, four hundred twenty-one".