30954975451 has 2 divisors, whose sum is σ = 30954975452. Its totient is φ = 30954975450.

The previous prime is 30954975449. The next prime is 30954975497. The reversal of 30954975451 is 15457945903.

It is a weak prime.

It is an emirp because it is prime and its reverse (15457945903) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 30954975451 - 2¹ = 30954975449 is a prime.

Together with 30954975449, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (30954975421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15477487725 + 15477487726.

It is an arithmetic number, because the mean of its divisors is an integer number (15477487726).

Almost surely, 2^30954975451 is an apocalyptic number.

30954975451 is a deficient number, since it is larger than the sum of its proper divisors (1).

30954975451 is an equidigital number, since it uses as much as digits as its factorization.

30954975451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3402000, while the sum is 52.

The spelling of 30954975451 in words is "thirty billion, nine hundred fifty-four million, nine hundred seventy-five thousand, four hundred fifty-one".