15109772688953 has 2 divisors, whose sum is σ = 15109772688954. Its totient is φ = 15109772688952.

The previous prime is 15109772688943. The next prime is 15109772689007. The reversal of 15109772688953 is 35988627790151.

15109772688953 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8126422073344 + 6983350615609 = 2850688^2 + 2642603^2 .

It is a cyclic number.

It is not a de Polignac number, because 15109772688953 - 2¹² = 15109772684857 is a prime.

It is not a weakly prime, because it can be changed into another prime (15109772688943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7554886344476 + 7554886344477.

It is an arithmetic number, because the mean of its divisors is an integer number (7554886344477).

Almost surely, 2^{15109772688953} is an apocalyptic number.

It is an amenable number.

15109772688953 is a deficient number, since it is larger than the sum of its proper divisors (1).

15109772688953 is an equidigital number, since it uses as much as digits as its factorization.

15109772688953 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 228614400, while the sum is 71.

The spelling of 15109772688953 in words is "fifteen trillion, one hundred nine billion, seven hundred seventy-two million, six hundred eighty-eight thousand, nine hundred fifty-three".