21703837354 has 8 divisors (see below), whose sum is σ = 32586735168. Its totient is φ = 10841592300.

The previous prime is 21703837303. The next prime is 21703837361. The reversal of 21703837354 is 45373830712.

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

It is a self number, because there is not a number n which added to its sum of digits gives 21703837354.

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, 5160562 + ... + 5164765.

It is an arithmetic number, because the mean of its divisors is an integer number (4073341896).

Almost surely, 2^21703837354 is an apocalyptic number.

21703837354 is a deficient number, since it is larger than the sum of its proper divisors (10882897814).

21703837354 is a wasteful number, since it uses less digits than its factorization.

21703837354 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10326380.

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 21703837354 in words is "twenty-one billion, seven hundred three million, eight hundred thirty-seven thousand, three hundred fifty-four".