21070574013 has 16 divisors (see below), whose sum is σ = 28229160960. Its totient is φ = 13979626224.

The previous prime is 21070574011. The next prime is 21070574029. The reversal of 21070574013 is 31047507012.

It is not a de Polignac number, because 21070574013 - 2¹ = 21070574011 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21070574011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 806920 + ... + 832622.

It is an arithmetic number, because the mean of its divisors is an integer number (1764322560).

Almost surely, 2^21070574013 is an apocalyptic number.

It is an amenable number.

21070574013 is a deficient number, since it is larger than the sum of its proper divisors (7158586947).

21070574013 is a wasteful number, since it uses less digits than its factorization.

21070574013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27008.

The product of its (nonzero) digits is 5880, while the sum is 30.

The spelling of 21070574013 in words is "twenty-one billion, seventy million, five hundred seventy-four thousand, thirteen".