7854785461 has 2 divisors, whose sum is σ = 7854785462. Its totient is φ = 7854785460.

The previous prime is 7854785431. The next prime is 7854785467. The reversal of 7854785461 is 1645874587.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6537531025 + 1317254436 = 80855^2 + 36294^2 .

It is a cyclic number.

It is not a de Polignac number, because 7854785461 - 2¹³ = 7854777269 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (7854785467) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3927392730 + 3927392731.

It is an arithmetic number, because the mean of its divisors is an integer number (3927392731).

Almost surely, 2^7854785461 is an apocalyptic number.

It is an amenable number.

7854785461 is a deficient number, since it is larger than the sum of its proper divisors (1).

7854785461 is an equidigital number, since it uses as much as digits as its factorization.

7854785461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7526400, while the sum is 55.

The square root of 7854785461 is about 88627.2275375914. The cubic root of 7854785461 is about 1987.8248213278.

The spelling of 7854785461 in words is "seven billion, eight hundred fifty-four million, seven hundred eighty-five thousand, four hundred sixty-one".