21470348038 has 16 divisors (see below), whose sum is σ = 32275998720. Its totient is φ = 10711707016.

The previous prime is 21470347979. The next prime is 21470348069. The reversal of 21470348038 is 83084307412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2046795 + ... + 2057257.

It is an arithmetic number, because the mean of its divisors is an integer number (2017249920).

Almost surely, 2^21470348038 is an apocalyptic number.

21470348038 is a deficient number, since it is larger than the sum of its proper divisors (10805650682).

21470348038 is a wasteful number, since it uses less digits than its factorization.

21470348038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12611.

The product of its (nonzero) digits is 129024, while the sum is 40.

The spelling of 21470348038 in words is "twenty-one billion, four hundred seventy million, three hundred forty-eight thousand, thirty-eight".