21433450630 has 16 divisors (see below), whose sum is σ = 38726908704. Its totient is φ = 8540780800.

The previous prime is 21433450607. The next prime is 21433450651. The reversal of 21433450630 is 3605433412.

It is a junction number, because it is equal to n+sod(n) for n = 21433450592 and 21433450601.

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, 4072171 + ... + 4077430.

It is an arithmetic number, because the mean of its divisors is an integer number (2420431794).

Almost surely, 2^21433450630 is an apocalyptic number.

21433450630 is a deficient number, since it is larger than the sum of its proper divisors (17293458074).

21433450630 is a wasteful number, since it uses less digits than its factorization.

21433450630 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8149871.

The product of its (nonzero) digits is 25920, while the sum is 31.

The spelling of 21433450630 in words is "twenty-one billion, four hundred thirty-three million, four hundred fifty thousand, six hundred thirty".