7859489461 has 2 divisors, whose sum is σ = 7859489462. Its totient is φ = 7859489460.

The previous prime is 7859489401. The next prime is 7859489467. The reversal of 7859489461 is 1649849587.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 5527179025 + 2332310436 = 74345^2 + 48294^2 .

It is a cyclic number.

It is not a de Polignac number, because 7859489461 - 2²⁹ = 7322618549 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 7859489461.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7859489467) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3929744730 + 3929744731.

It is an arithmetic number, because the mean of its divisors is an integer number (3929744731).

Almost surely, 2^7859489461 is an apocalyptic number.

It is an amenable number.

7859489461 is a deficient number, since it is larger than the sum of its proper divisors (1).

7859489461 is an equidigital number, since it uses as much as digits as its factorization.

7859489461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17418240, while the sum is 61.

The square root of 7859489461 is about 88653.7616855596. The cubic root of 7859489461 is about 1988.2215587477.

The spelling of 7859489461 in words is "seven billion, eight hundred fifty-nine million, four hundred eighty-nine thousand, four hundred sixty-one".