15228774099 has 48 divisors (see below), whose sum is σ = 28617398784. Its totient is φ = 7567084800.

The previous prime is 15228774073. The next prime is 15228774161. The reversal of 15228774099 is 99047782251.

15228774099 is a `hidden beast` number, since 1 + 5 + 228 + 7 + 7 + 409 + 9 = 666.

It is not a de Polignac number, because 15228774099 - 2¹² = 15228770003 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15228774299) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 461782 + ... + 493659.

It is an arithmetic number, because the mean of its divisors is an integer number (596195808).

Almost surely, 2^15228774099 is an apocalyptic number.

15228774099 is a deficient number, since it is larger than the sum of its proper divisors (13388624685).

15228774099 is a wasteful number, since it uses less digits than its factorization.

15228774099 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 955488 (or 955485 counting only the distinct ones).

The product of its (nonzero) digits is 2540160, while the sum is 54.

The spelling of 15228774099 in words is "fifteen billion, two hundred twenty-eight million, seven hundred seventy-four thousand, ninety-nine".