30492605021 has 8 divisors (see below), whose sum is σ = 30651619320. Its totient is φ = 30333929472.

The previous prime is 30492604981. The next prime is 30492605047. The reversal of 30492605021 is 12050629403.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 1383468025 + 29109136996 = 37195^2 + 170614^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 30492605021 - 2¹⁸ = 30492342877 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30498605021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 96821 + ... + 265253.

It is an arithmetic number, because the mean of its divisors is an integer number (3831452415).

Almost surely, 2^30492605021 is an apocalyptic number.

It is an amenable number.

30492605021 is a deficient number, since it is larger than the sum of its proper divisors (159014299).

30492605021 is a wasteful number, since it uses less digits than its factorization.

30492605021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169375.

The product of its (nonzero) digits is 12960, while the sum is 32.

The spelling of 30492605021 in words is "thirty billion, four hundred ninety-two million, six hundred five thousand, twenty-one".