4785912861409 has 2 divisors, whose sum is σ = 4785912861410. Its totient is φ = 4785912861408.

The previous prime is 4785912861403. The next prime is 4785912861413. The reversal of 4785912861409 is 9041682195874.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 4297731171409 + 488181690000 = 2073097^2 + 698700^2 .

It is a cyclic number.

It is not a de Polignac number, because 4785912861409 - 2¹⁷ = 4785912730337 is a prime.

It is not a weakly prime, because it can be changed into another prime (4785912861403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2392956430704 + 2392956430705.

It is an arithmetic number, because the mean of its divisors is an integer number (2392956430705).

Almost surely, 2^{4785912861409} is an apocalyptic number.

It is an amenable number.

4785912861409 is a deficient number, since it is larger than the sum of its proper divisors (1).

4785912861409 is an equidigital number, since it uses as much as digits as its factorization.

4785912861409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 34836480, while the sum is 64.

The spelling of 4785912861409 in words is "four trillion, seven hundred eighty-five billion, nine hundred twelve million, eight hundred sixty-one thousand, four hundred nine".