30842694879973 has 2 divisors, whose sum is σ = 30842694879974. Its totient is φ = 30842694879972.

The previous prime is 30842694879877. The next prime is 30842694879991. The reversal of 30842694879973 is 37997849624803.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30842050887844 + 643992129 = 5553562^2 + 25377^2 .

It is a cyclic number.

It is not a de Polignac number, because 30842694879973 - 2⁹ = 30842694879461 is a prime.

It is a super-2 number, since 2×30842694879973² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30842694879893 and 30842694879902.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30842694879173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15421347439986 + 15421347439987.

It is an arithmetic number, because the mean of its divisors is an integer number (15421347439987).

Almost surely, 2^{30842694879973} is an apocalyptic number.

It is an amenable number.

30842694879973 is a deficient number, since it is larger than the sum of its proper divisors (1).

30842694879973 is an equidigital number, since it uses as much as digits as its factorization.

30842694879973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3950456832, while the sum is 79.

The spelling of 30842694879973 in words is "thirty trillion, eight hundred forty-two billion, six hundred ninety-four million, eight hundred seventy-nine thousand, nine hundred seventy-three".