21607574054 has 8 divisors (see below), whose sum is σ = 35357848488. Its totient is φ = 9821624560.

The previous prime is 21607574033. The next prime is 21607574099. The reversal of 21607574054 is 45047570612.

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 pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 491081207 + ... + 491081250.

It is an arithmetic number, because the mean of its divisors is an integer number (4419731061).

Almost surely, 2^21607574054 is an apocalyptic number.

21607574054 is a deficient number, since it is larger than the sum of its proper divisors (13750274434).

21607574054 is a wasteful number, since it uses less digits than its factorization.

21607574054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 982162470.

The product of its (nonzero) digits is 235200, while the sum is 41.

The spelling of 21607574054 in words is "twenty-one billion, six hundred seven million, five hundred seventy-four thousand, fifty-four".