30536674021 has 6 divisors (see below), whose sum is σ = 35522253510. Its totient is φ = 26174291976.

The previous prime is 30536674009. The next prime is 30536674061. The reversal of 30536674021 is 12047663503.

It can be written as a sum of positive squares in only one way, i.e., 28012716900 + 2523957121 = 167370^2 + 50239^2 .

It is not a de Polignac number, because 30536674021 - 2²¹ = 30534576869 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 (30536674001) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 311598666 + ... + 311598763.

It is an arithmetic number, because the mean of its divisors is an integer number (5920375585).

Almost surely, 2^30536674021 is an apocalyptic number.

It is an amenable number.

30536674021 is a deficient number, since it is larger than the sum of its proper divisors (4985579489).

30536674021 is an equidigital number, since it uses as much as digits as its factorization.

30536674021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 623197443 (or 623197436 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 37.

The spelling of 30536674021 in words is "thirty billion, five hundred thirty-six million, six hundred seventy-four thousand, twenty-one".