8437881648 has 40 divisors (see below), whose sum is σ = 24911842048. Its totient is φ = 2410823232.

The previous prime is 8437881629. The next prime is 8437881653. The reversal of 8437881648 is 8461887348.

It is a happy number.

It is a nude number because it is divisible by every one of its digits.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12556036 + ... + 12556707.

Almost surely, 2^8437881648 is an apocalyptic number.

It is an amenable number.

8437881648 is an abundant number, since it is smaller than the sum of its proper divisors (16473960400).

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

8437881648 is a wasteful number, since it uses less digits than its factorization.

8437881648 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25112761 (or 25112755 counting only the distinct ones).

The product of its digits is 8257536, while the sum is 57.

The square root of 8437881648 is about 91857.9427594587. The cubic root of 8437881648 is about 2035.8439068591.

The spelling of 8437881648 in words is "eight billion, four hundred thirty-seven million, eight hundred eighty-one thousand, six hundred forty-eight".