28741025477 has 2 divisors, whose sum is σ = 28741025478. Its totient is φ = 28741025476.

The previous prime is 28741025419. The next prime is 28741025491. The reversal of 28741025477 is 77452014782.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 28542750916 + 198274561 = 168946^2 + 14081^2 .

It is a cyclic number.

It is not a de Polignac number, because 28741025477 - 2¹⁶ = 28740959941 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (28741015477) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 14370512738 + 14370512739.

It is an arithmetic number, because the mean of its divisors is an integer number (14370512739).

Almost surely, 2^28741025477 is an apocalyptic number.

It is an amenable number.

28741025477 is a deficient number, since it is larger than the sum of its proper divisors (1).

28741025477 is an equidigital number, since it uses as much as digits as its factorization.

28741025477 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 878080, while the sum is 47.

The spelling of 28741025477 in words is "twenty-eight billion, seven hundred forty-one million, twenty-five thousand, four hundred seventy-seven".