21674352350 has 24 divisors (see below), whose sum is σ = 46073481168. Its totient is φ = 7431206400.

The previous prime is 21674352319. The next prime is 21674352373. The reversal of 21674352350 is 5325347612.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30963011 + ... + 30963710.

It is an arithmetic number, because the mean of its divisors is an integer number (1919728382).

Almost surely, 2^21674352350 is an apocalyptic number.

21674352350 is an abundant number, since it is smaller than the sum of its proper divisors (24399128818).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

21674352350 is a wasteful number, since it uses less digits than its factorization.

21674352350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61926740 (or 61926735 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 38.

Adding to 21674352350 its reverse (5325347612), we get a palindrome (26999699962).

The spelling of 21674352350 in words is "twenty-one billion, six hundred seventy-four million, three hundred fifty-two thousand, three hundred fifty".