7842671461 has 2 divisors, whose sum is σ = 7842671462. Its totient is φ = 7842671460.

The previous prime is 7842671407. The next prime is 7842671479. The reversal of 7842671461 is 1641762487.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7503890625 + 338780836 = 86625^2 + 18406^2 .

It is an emirp because it is prime and its reverse (1641762487) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7842671461 - 2⁹ = 7842670949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7842677461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3921335730 + 3921335731.

It is an arithmetic number, because the mean of its divisors is an integer number (3921335731).

Almost surely, 2^7842671461 is an apocalyptic number.

It is an amenable number.

7842671461 is a deficient number, since it is larger than the sum of its proper divisors (1).

7842671461 is an equidigital number, since it uses as much as digits as its factorization.

7842671461 is an evil number, because the sum of its binary digits is even.

The product of its digits is 451584, while the sum is 46.

The square root of 7842671461 is about 88558.8587381296. The cubic root of 7842671461 is about 1986.8023915420.

The spelling of 7842671461 in words is "seven billion, eight hundred forty-two million, six hundred seventy-one thousand, four hundred sixty-one".