15295448681891 has 16 divisors (see below), whose sum is σ = 17499056263104. Its totient is φ = 13096478888064.

The previous prime is 15295448681879. The next prime is 15295448681983. The reversal of 15295448681891 is 19818684459251.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15295448681891 is a prime.

It is a super-2 number, since 2×15295448681891² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (15295448681831) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 106385345 + ... + 106529021.

It is an arithmetic number, because the mean of its divisors is an integer number (1093691016444).

Almost surely, 2^{15295448681891} is an apocalyptic number.

15295448681891 is a deficient number, since it is larger than the sum of its proper divisors (2203607581213).

15295448681891 is a wasteful number, since it uses less digits than its factorization.

15295448681891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 159710.

The product of its digits is 199065600, while the sum is 71.

The spelling of 15295448681891 in words is "fifteen trillion, two hundred ninety-five billion, four hundred forty-eight million, six hundred eighty-one thousand, eight hundred ninety-one".