30417278620961 has 2 divisors, whose sum is σ = 30417278620962. Its totient is φ = 30417278620960.

The previous prime is 30417278620931. The next prime is 30417278620969. The reversal of 30417278620961 is 16902687271403.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28668999670336 + 1748278950625 = 5354344^2 + 1322225^2 .

It is a cyclic number.

It is not a de Polignac number, because 30417278620961 - 2²⁶ = 30417211512097 is a prime.

It is a super-2 number, since 2×30417278620961² (a number of 28 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 30417278620897 and 30417278620906.

It is not a weakly prime, because it can be changed into another prime (30417278620969) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15208639310480 + 15208639310481.

It is an arithmetic number, because the mean of its divisors is an integer number (15208639310481).

Almost surely, 2^{30417278620961} is an apocalyptic number.

It is an amenable number.

30417278620961 is a deficient number, since it is larger than the sum of its proper divisors (1).

30417278620961 is an equidigital number, since it uses as much as digits as its factorization.

30417278620961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6096384, while the sum is 56.

The spelling of 30417278620961 in words is "thirty trillion, four hundred seventeen billion, two hundred seventy-eight million, six hundred twenty thousand, nine hundred sixty-one".