21470654704 has 20 divisors (see below), whose sum is σ = 41854609576. Its totient is φ = 10669465152.

The previous prime is 21470654701. The next prime is 21470654717. The reversal of 21470654704 is 40745607412.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21470654701) 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 3 ways as a sum of consecutive naturals, for example, 4113699 + ... + 4118914.

Almost surely, 2^21470654704 is an apocalyptic number.

It is an amenable number.

21470654704 is a deficient number, since it is larger than the sum of its proper divisors (20383954872).

21470654704 is a wasteful number, since it uses less digits than its factorization.

21470654704 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8232784 (or 8232778 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 40.

The spelling of 21470654704 in words is "twenty-one billion, four hundred seventy million, six hundred fifty-four thousand, seven hundred four".