28949952007 has 2 divisors, whose sum is σ = 28949952008. Its totient is φ = 28949952006.

The previous prime is 28949951963. The next prime is 28949952023. The reversal of 28949952007 is 70025994982.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28949952007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28949952037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14474976003 + 14474976004.

It is an arithmetic number, because the mean of its divisors is an integer number (14474976004).

Almost surely, 2^28949952007 is an apocalyptic number.

28949952007 is a deficient number, since it is larger than the sum of its proper divisors (1).

28949952007 is an equidigital number, since it uses as much as digits as its factorization.

28949952007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 28949952007 in words is "twenty-eight billion, nine hundred forty-nine million, nine hundred fifty-two thousand, seven".