15062618961481 has 27 divisors (see below), whose sum is σ = 18973778825781. Its totient is φ = 11917397104704.

The previous prime is 15062618961479. The next prime is 15062618961487. The reversal of 15062618961481 is 18416981626051.

The square root of 15062618961481 is 3881059.

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

It can be written as a sum of positive squares in 4 ways, for example, as 1120729236025 + 13941889725456 = 1058645^2 + 3733884^2 .

It is not a de Polignac number, because 15062618961481 - 2¹ = 15062618961479 is a prime.

It is a super-3 number, since 3×15062618961481³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (15062618961487) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 353155045 + ... + 353197693.

It is an arithmetic number, because the mean of its divisors is an integer number (702732549103).

Almost surely, 2^{15062618961481} is an apocalyptic number.

15062618961481 is the 3881059-th square number.

15062618961481 is the 1940530-th centered octagonal number.

It is an amenable number.

15062618961481 is a deficient number, since it is larger than the sum of its proper divisors (3911159864300).

15062618961481 is an frugal number, since it uses more digits than its factorization.

15062618961481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85338 (or 42669 counting only the distinct ones).

The product of its (nonzero) digits is 4976640, while the sum is 58.

The spelling of 15062618961481 in words is "fifteen trillion, sixty-two billion, six hundred eighteen million, nine hundred sixty-one thousand, four hundred eighty-one".