30421038087729 has 27 divisors (see below), whose sum is σ = 44192656775449. Its totient is φ = 20165428575240.

The previous prime is 30421038087707. The next prime is 30421038087733. The reversal of 30421038087729 is 92778083012403.

The square root of 30421038087729 is 5515527.

It is a perfect power (a square), and thus also a powerful number.

30421038087729 is a `hidden beast` number, since 304 + 210 + 38 + 0 + 8 + 77 + 29 = 666.

It is not a de Polignac number, because 30421038087729 - 2²³ = 30421029699121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30421038087529) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 2961832864 + ... + 2961843134.

Almost surely, 2^{30421038087729} is an apocalyptic number.

30421038087729 is the 5515527-th square number.

30421038087729 is the 2757764-th centered octagonal number.

It is an amenable number.

30421038087729 is a deficient number, since it is larger than the sum of its proper divisors (13771618687720).

30421038087729 is an frugal number, since it uses more digits than its factorization.

30421038087729 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20906 (or 10453 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 30421038087729 in words is "thirty trillion, four hundred twenty-one billion, thirty-eight million, eighty-seven thousand, seven hundred twenty-nine".