15742733380709 has 2 divisors, whose sum is σ = 15742733380710. Its totient is φ = 15742733380708.

The previous prime is 15742733380691. The next prime is 15742733380769. The reversal of 15742733380709 is 90708333724751.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11046749032225 + 4695984348484 = 3323665^2 + 2167022^2 .

It is a cyclic number.

It is not a de Polignac number, because 15742733380709 - 2²⁸ = 15742464945253 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15742733380769) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7871366690354 + 7871366690355.

It is an arithmetic number, because the mean of its divisors is an integer number (7871366690355).

Almost surely, 2^{15742733380709} is an apocalyptic number.

It is an amenable number.

15742733380709 is a deficient number, since it is larger than the sum of its proper divisors (1).

15742733380709 is an equidigital number, since it uses as much as digits as its factorization.

15742733380709 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 26671680, while the sum is 59.

The spelling of 15742733380709 in words is "fifteen trillion, seven hundred forty-two billion, seven hundred thirty-three million, three hundred eighty thousand, seven hundred nine".