21472380153 has 80 divisors (see below), whose sum is σ = 36995751936. Its totient is φ = 12157659360.

The previous prime is 21472380151. The next prime is 21472380157. The reversal of 21472380153 is 35108327412.

21472380153 is a `hidden beast` number, since 2 + 1 + 472 + 38 + 0 + 153 = 666.

It is not a de Polignac number, because 21472380153 - 2¹ = 21472380151 is a prime.

It is a super-2 number, since 2×21472380153² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21472380151) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 46376400 + ... + 46376862.

Almost surely, 2^21472380153 is an apocalyptic number.

It is an amenable number.

21472380153 is a deficient number, since it is larger than the sum of its proper divisors (15523371783).

21472380153 is a wasteful number, since it uses less digits than its factorization.

21472380153 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1056 (or 1047 counting only the distinct ones).

The product of its (nonzero) digits is 40320, while the sum is 36.

The spelling of 21472380153 in words is "twenty-one billion, four hundred seventy-two million, three hundred eighty thousand, one hundred fifty-three".