21830533432 has 32 divisors (see below), whose sum is σ = 41900799600. Its totient is φ = 10657188864.

The previous prime is 21830533423. The next prime is 21830533453. The reversal of 21830533432 is 23433503812.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 964744 + ... + 987112.

Almost surely, 2^21830533432 is an apocalyptic number.

It is an amenable number.

21830533432 is a deficient number, since it is larger than the sum of its proper divisors (20070266168).

21830533432 is a wasteful number, since it uses less digits than its factorization.

21830533432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25255 (or 25251 counting only the distinct ones).

The product of its (nonzero) digits is 51840, while the sum is 34.

The spelling of 21830533432 in words is "twenty-one billion, eight hundred thirty million, five hundred thirty-three thousand, four hundred thirty-two".