21907204803 has 48 divisors (see below), whose sum is σ = 34715596032. Its totient is φ = 13202280000.

The previous prime is 21907204783. The next prime is 21907204831. The reversal of 21907204803 is 30840270912.

21907204803 is a `hidden beast` number, since 21 + 90 + 72 + 0 + 480 + 3 = 666.

It is not a de Polignac number, because 21907204803 - 2⁵ = 21907204771 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21907204873) by changing a digit.

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 47 ways as a sum of consecutive naturals, for example, 20843628 + ... + 20844678.

It is an arithmetic number, because the mean of its divisors is an integer number (723241584).

Almost surely, 2^21907204803 is an apocalyptic number.

21907204803 is a deficient number, since it is larger than the sum of its proper divisors (12808391229).

21907204803 is a wasteful number, since it uses less digits than its factorization.

21907204803 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2056 (or 2053 counting only the distinct ones).

The product of its (nonzero) digits is 24192, while the sum is 36.

The spelling of 21907204803 in words is "twenty-one billion, nine hundred seven million, two hundred four thousand, eight hundred three".