8715615481 has 4 divisors (see below), whose sum is σ = 8718283264. Its totient is φ = 8712947700.

The previous prime is 8715615479. The next prime is 8715615511. The reversal of 8715615481 is 1845165178.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1845165178 = 2 ⋅922582589.

It is a cyclic number.

It is not a de Polignac number, because 8715615481 - 2¹ = 8715615479 is a prime.

It is a super-2 number, since 2×8715615481² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (8715015481) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1328985 + ... + 1335526.

It is an arithmetic number, because the mean of its divisors is an integer number (2179570816).

Almost surely, 2^8715615481 is an apocalyptic number.

It is an amenable number.

8715615481 is a deficient number, since it is larger than the sum of its proper divisors (2667783).

8715615481 is a wasteful number, since it uses less digits than its factorization.

8715615481 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2667782.

The product of its digits is 268800, while the sum is 46.

The square root of 8715615481 is about 93357.4607677394. The cubic root of 8715615481 is about 2057.9398986485.

The spelling of 8715615481 in words is "eight billion, seven hundred fifteen million, six hundred fifteen thousand, four hundred eighty-one".