9457684139 has 2 divisors, whose sum is σ = 9457684140. Its totient is φ = 9457684138.

The previous prime is 9457684123. The next prime is 9457684147. The reversal of 9457684139 is 9314867549.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 9457684139 - 2⁴ = 9457684123 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (9457683139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 4728842069 + 4728842070.

It is an arithmetic number, because the mean of its divisors is an integer number (4728842070).

Almost surely, 2^9457684139 is an apocalyptic number.

9457684139 is a deficient number, since it is larger than the sum of its proper divisors (1).

9457684139 is an equidigital number, since it uses as much as digits as its factorization.

9457684139 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 56.

The square root of 9457684139 is about 97250.6253913053. The cubic root of 9457684139 is about 2114.7625058829.

The spelling of 9457684139 in words is "nine billion, four hundred fifty-seven million, six hundred eighty-four thousand, one hundred thirty-nine".