21488850713 has 16 divisors (see below), whose sum is σ = 24153517440. Its totient is φ = 18946108800.

The previous prime is 21488850707. The next prime is 21488850727. The reversal of 21488850713 is 31705888412.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-21488850713 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21488852713) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 41693 + ... + 211461.

It is an arithmetic number, because the mean of its divisors is an integer number (1509594840).

Almost surely, 2^21488850713 is an apocalyptic number.

It is an amenable number.

21488850713 is a deficient number, since it is larger than the sum of its proper divisors (2664666727).

21488850713 is a wasteful number, since it uses less digits than its factorization.

21488850713 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 170128.

The product of its (nonzero) digits is 430080, while the sum is 47.

The spelling of 21488850713 in words is "twenty-one billion, four hundred eighty-eight million, eight hundred fifty thousand, seven hundred thirteen".