30790747489971 has 16 divisors (see below), whose sum is σ = 46937342896128. Its totient is φ = 17587922116800.

The previous prime is 30790747489969. The next prime is 30790747489981. The reversal of 30790747489971 is 17998474709703.

It is not a de Polignac number, because 30790747489971 - 2¹ = 30790747489969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30790747489893 and 30790747489902.

It is not an unprimeable number, because it can be changed into a prime (30790747489981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 282891570 + ... + 283000391.

It is an arithmetic number, because the mean of its divisors is an integer number (2933583931008).

Almost surely, 2^{30790747489971} is an apocalyptic number.

30790747489971 is a deficient number, since it is larger than the sum of its proper divisors (16146595406157).

30790747489971 is a wasteful number, since it uses less digits than its factorization.

30790747489971 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565894562.

The product of its (nonzero) digits is 672126336, while the sum is 75.

The spelling of 30790747489971 in words is "thirty trillion, seven hundred ninety billion, seven hundred forty-seven million, four hundred eighty-nine thousand, nine hundred seventy-one".