21360527148 has 12 divisors (see below), whose sum is σ = 49841230040. Its totient is φ = 7120175712.

The previous prime is 21360527143. The next prime is 21360527159. The reversal of 21360527148 is 84172506312.

It is a tau number, because it is divible by the number of its divisors (12).

It is not an unprimeable number, because it can be changed into a prime (21360527143) 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, 890021953 + ... + 890021976.

Almost surely, 2^21360527148 is an apocalyptic number.

It is an amenable number.

21360527148 is an abundant number, since it is smaller than the sum of its proper divisors (28480702892).

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

21360527148 is a wasteful number, since it uses less digits than its factorization.

21360527148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1780043936 (or 1780043934 counting only the distinct ones).

The product of its (nonzero) digits is 80640, while the sum is 39.

The spelling of 21360527148 in words is "twenty-one billion, three hundred sixty million, five hundred twenty-seven thousand, one hundred forty-eight".