28440461479 has 2 divisors, whose sum is σ = 28440461480. Its totient is φ = 28440461478.

The previous prime is 28440461437. The next prime is 28440461509. The reversal of 28440461479 is 97416404482.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 28440461479 - 2⁷ = 28440461351 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28440461879) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14220230739 + 14220230740.

It is an arithmetic number, because the mean of its divisors is an integer number (14220230740).

Almost surely, 2^28440461479 is an apocalyptic number.

28440461479 is a deficient number, since it is larger than the sum of its proper divisors (1).

28440461479 is an equidigital number, since it uses as much as digits as its factorization.

28440461479 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1548288, while the sum is 49.

The spelling of 28440461479 in words is "twenty-eight billion, four hundred forty million, four hundred sixty-one thousand, four hundred seventy-nine".