28446125749 has 2 divisors, whose sum is σ = 28446125750. Its totient is φ = 28446125748.

The previous prime is 28446125737. The next prime is 28446125761. The reversal of 28446125749 is 94752164482.

It is a balanced prime because it is at equal distance from previous prime (28446125737) and next prime (28446125761).

It can be written as a sum of positive squares in only one way, i.e., 19728168849 + 8717956900 = 140457^2 + 93370^2 .

It is a cyclic number.

It is not a de Polignac number, because 28446125749 - 2⁵ = 28446125717 is a prime.

It is a super-2 number, since 2×28446125749² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 28446125696 and 28446125705.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28446120749) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14223062874 + 14223062875.

It is an arithmetic number, because the mean of its divisors is an integer number (14223062875).

Almost surely, 2^28446125749 is an apocalyptic number.

It is an amenable number.

28446125749 is a deficient number, since it is larger than the sum of its proper divisors (1).

28446125749 is an equidigital number, since it uses as much as digits as its factorization.

28446125749 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3870720, while the sum is 52.

The spelling of 28446125749 in words is "twenty-eight billion, four hundred forty-six million, one hundred twenty-five thousand, seven hundred forty-nine".