8915621412 has 24 divisors (see below), whose sum is σ = 20879888512. Its totient is φ = 2960906400.

The previous prime is 8915621411. The next prime is 8915621441. The reversal of 8915621412 is 2141265198.

It is a super-2 number, since 2×8915621412² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (8915621411) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1367539 + ... + 1374042.

Almost surely, 2^8915621412 is an apocalyptic number.

It is an amenable number.

8915621412 is an abundant number, since it is smaller than the sum of its proper divisors (11964267100).

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

8915621412 is a wasteful number, since it uses less digits than its factorization.

8915621412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2741859 (or 2741857 counting only the distinct ones).

The product of its digits is 34560, while the sum is 39.

The square root of 8915621412 is about 94422.5683404132. The cubic root of 8915621412 is about 2073.5628631606.

The spelling of 8915621412 in words is "eight billion, nine hundred fifteen million, six hundred twenty-one thousand, four hundred twelve".