8915988465 has 32 divisors (see below), whose sum is σ = 15998808960. Its totient is φ = 4710745152.

The previous prime is 8915988463. The next prime is 8915988493. The reversal of 8915988465 is 5648895198.

8915988465 is a `hidden beast` number, since 8 + 91 + 5 + 9 + 88 + 465 = 666.

It is not a de Polignac number, because 8915988465 - 2¹ = 8915988463 is a prime.

It is a super-3 number, since 3×8915988465³ (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (8915988463) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 294174 + ... + 323063.

It is an arithmetic number, because the mean of its divisors is an integer number (499962780).

Almost surely, 2^8915988465 is an apocalyptic number.

It is an amenable number.

8915988465 is a deficient number, since it is larger than the sum of its proper divisors (7082820495).

8915988465 is a wasteful number, since it uses less digits than its factorization.

8915988465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 617358 (or 617352 counting only the distinct ones).

The product of its digits is 24883200, while the sum is 63.

The square root of 8915988465 is about 94424.5119923847. The cubic root of 8915988465 is about 2073.5913187216.

The spelling of 8915988465 in words is "eight billion, nine hundred fifteen million, nine hundred eighty-eight thousand, four hundred sixty-five".