21376147248 has 120 divisors (see below), whose sum is σ = 60451773200. Its totient is φ = 7050903552.

The previous prime is 21376147231. The next prime is 21376147253. The reversal of 21376147248 is 84274167312.

21376147248 is a `hidden beast` number, since 2 + 1 + 3 + 7 + 614 + 7 + 24 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6743808 + ... + 6746976.

Almost surely, 2^21376147248 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21376147248, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30225886600).

21376147248 is an abundant number, since it is smaller than the sum of its proper divisors (39075625952).

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

21376147248 is a wasteful number, since it uses less digits than its factorization.

21376147248 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3659 (or 3650 counting only the distinct ones).

The product of its digits is 451584, while the sum is 45.

The spelling of 21376147248 in words is "twenty-one billion, three hundred seventy-six million, one hundred forty-seven thousand, two hundred forty-eight".