15228645396 has 48 divisors (see below), whose sum is σ = 36413483904. Its totient is φ = 4951613056.

The previous prime is 15228645389. The next prime is 15228645401. The reversal of 15228645396 is 69354682251.

It is a happy number.

It is a super-2 number, since 2×15228645396² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 40825 + ... + 179231.

It is an arithmetic number, because the mean of its divisors is an integer number (758614248).

Almost surely, 2^15228645396 is an apocalyptic number.

It is an amenable number.

15228645396 is an abundant number, since it is smaller than the sum of its proper divisors (21184838508).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

15228645396 is a wasteful number, since it uses less digits than its factorization.

15228645396 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 138640 (or 138638 counting only the distinct ones).

The product of its digits is 3110400, while the sum is 51.

The spelling of 15228645396 in words is "fifteen billion, two hundred twenty-eight million, six hundred forty-five thousand, three hundred ninety-six".