21360527147 has 32 divisors (see below), whose sum is σ = 22992076800. Its totient is φ = 19815769600.

The previous prime is 21360527143. The next prime is 21360527159. The reversal of 21360527147 is 74172506312.

It is a cyclic number.

It is not a de Polignac number, because 21360527147 - 2² = 21360527143 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21360527147.

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 31 ways as a sum of consecutive naturals, for example, 10117622 + ... + 10119732.

It is an arithmetic number, because the mean of its divisors is an integer number (718502400).

Almost surely, 2^21360527147 is an apocalyptic number.

21360527147 is a deficient number, since it is larger than the sum of its proper divisors (1631549653).

21360527147 is a wasteful number, since it uses less digits than its factorization.

21360527147 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2347.

The product of its (nonzero) digits is 70560, while the sum is 38.

The spelling of 21360527147 in words is "twenty-one billion, three hundred sixty million, five hundred twenty-seven thousand, one hundred forty-seven".