15342543889 has 2 divisors, whose sum is σ = 15342543890. Its totient is φ = 15342543888.

The previous prime is 15342543859. The next prime is 15342543899. The reversal of 15342543889 is 98834524351.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 13413577489 + 1928966400 = 115817^2 + 43920^2 .

It is a cyclic number.

It is not a de Polignac number, because 15342543889 - 2¹³ = 15342535697 is a prime.

It is not a weakly prime, because it can be changed into another prime (15342543859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7671271944 + 7671271945.

It is an arithmetic number, because the mean of its divisors is an integer number (7671271945).

Almost surely, 2^15342543889 is an apocalyptic number.

It is an amenable number.

15342543889 is a deficient number, since it is larger than the sum of its proper divisors (1).

15342543889 is an equidigital number, since it uses as much as digits as its factorization.

15342543889 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 4147200, while the sum is 52.

The spelling of 15342543889 in words is "fifteen billion, three hundred forty-two million, five hundred forty-three thousand, eight hundred eighty-nine".