21467057032 has 16 divisors (see below), whose sum is σ = 40702988700. Its totient is φ = 10612926720.

The previous prime is 21467057009. The next prime is 21467057081. The reversal of 21467057032 is 23075076412.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 19092054276 + 2375002756 = 138174^2 + 48734^2 .

It is a junction number, because it is equal to n+sod(n) for n = 21467056982 and 21467057000.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 15074469 + ... + 15075892.

Almost surely, 2^21467057032 is an apocalyptic number.

It is an amenable number.

21467057032 is a deficient number, since it is larger than the sum of its proper divisors (19235931668).

21467057032 is a wasteful number, since it uses less digits than its factorization.

21467057032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30150456 (or 30150452 counting only the distinct ones).

The product of its (nonzero) digits is 70560, while the sum is 37.

The spelling of 21467057032 in words is "twenty-one billion, four hundred sixty-seven million, fifty-seven thousand, thirty-two".