28440461351 has 2 divisors, whose sum is σ = 28440461352. Its totient is φ = 28440461350.

The previous prime is 28440461297. The next prime is 28440461381. The reversal of 28440461351 is 15316404482.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-28440461351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28440461381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14220230675 + 14220230676.

It is an arithmetic number, because the mean of its divisors is an integer number (14220230676).

Almost surely, 2^28440461351 is an apocalyptic number.

28440461351 is a deficient number, since it is larger than the sum of its proper divisors (1).

28440461351 is an equidigital number, since it uses as much as digits as its factorization.

28440461351 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 92160, while the sum is 38.

The spelling of 28440461351 in words is "twenty-eight billion, four hundred forty million, four hundred sixty-one thousand, three hundred fifty-one".