15228460397956 has 27 divisors (see below), whose sum is σ = 28857674175813. Its totient is φ = 7028473355280.

The previous prime is 15228460397951. The next prime is 15228460397981. The reversal of 15228460397956 is 65979306482251.

The square root of 15228460397956 is 3902366.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 2252730828100 + 12975729569856 = 1500910^2 + 3602184^2 .

It is a super-2 number, since 2×15228460397956² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 15228460397891 and 15228460397900.

It is not an unprimeable number, because it can be changed into a prime (15228460397951) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 101386471 + ... + 101536561.

It is a 1-persistent number, because it is pandigital, but 2⋅15228460397956 = 30456920795912 is not.

Almost surely, 2^{15228460397956} is an apocalyptic number.

15228460397956 is the 3902366-th square number.

It is an amenable number.

15228460397956 is a deficient number, since it is larger than the sum of its proper divisors (13629213777857).

15228460397956 is an frugal number, since it uses more digits than its factorization.

15228460397956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 300212 (or 150106 counting only the distinct ones).

The product of its (nonzero) digits is 195955200, while the sum is 67.

The spelling of 15228460397956 in words is "fifteen trillion, two hundred twenty-eight billion, four hundred sixty million, three hundred ninety-seven thousand, nine hundred fifty-six".