15300891081 has 24 divisors (see below), whose sum is σ = 25275357120. Its totient is φ = 8737570656.

The previous prime is 15300891079. The next prime is 15300891097. The reversal of 15300891081 is 18019800351.

It is not a de Polignac number, because 15300891081 - 2¹ = 15300891079 is a prime.

It is a super-2 number, since 2×15300891081² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (15300891581) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16215 + ... + 175683.

It is an arithmetic number, because the mean of its divisors is an integer number (1053139880).

Almost surely, 2^15300891081 is an apocalyptic number.

It is an amenable number.

15300891081 is a deficient number, since it is larger than the sum of its proper divisors (9974466039).

15300891081 is a wasteful number, since it uses less digits than its factorization.

15300891081 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 161005 (or 161002 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 36.

The spelling of 15300891081 in words is "fifteen billion, three hundred million, eight hundred ninety-one thousand, eighty-one".