21794190038 has 8 divisors (see below), whose sum is σ = 32780363232. Its totient is φ = 10867402296.

The previous prime is 21794190013. The next prime is 21794190157. The reversal of 21794190038 is 83009149712.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14845445 + ... + 14846912.

It is an arithmetic number, because the mean of its divisors is an integer number (4097545404).

Almost surely, 2^21794190038 is an apocalyptic number.

21794190038 is a deficient number, since it is larger than the sum of its proper divisors (10986173194).

21794190038 is a wasteful number, since it uses less digits than its factorization.

21794190038 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29692726.

The product of its (nonzero) digits is 108864, while the sum is 44.

The spelling of 21794190038 in words is "twenty-one billion, seven hundred ninety-four million, one hundred ninety thousand, thirty-eight".