30654623641 has 2 divisors, whose sum is σ = 30654623642. Its totient is φ = 30654623640.

The previous prime is 30654623639. The next prime is 30654623663. The reversal of 30654623641 is 14632645603.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 24848793225 + 5805830416 = 157635^2 + 76196^2 .

It is a cyclic number.

It is not a de Polignac number, because 30654623641 - 2¹ = 30654623639 is a prime.

It is a super-3 number, since 3×30654623641³ (a number of 32 digits) contains 333 as substring.

Together with 30654623639, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 30654623594 and 30654623603.

It is not a weakly prime, because it can be changed into another prime (30654603641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15327311820 + 15327311821.

It is an arithmetic number, because the mean of its divisors is an integer number (15327311821).

Almost surely, 2^30654623641 is an apocalyptic number.

It is an amenable number.

30654623641 is a deficient number, since it is larger than the sum of its proper divisors (1).

30654623641 is an equidigital number, since it uses as much as digits as its factorization.

30654623641 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 30654623641 in words is "thirty billion, six hundred fifty-four million, six hundred twenty-three thousand, six hundred forty-one".