10278451017691 has 2 divisors, whose sum is σ = 10278451017692. Its totient is φ = 10278451017690.

The previous prime is 10278451017547. The next prime is 10278451017697. The reversal of 10278451017691 is 19671015487201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10278451017691 - 2¹⁹ = 10278450493403 is a prime.

It is not a weakly prime, because it can be changed into another prime (10278451017697) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5139225508845 + 5139225508846.

It is an arithmetic number, because the mean of its divisors is an integer number (5139225508846).

Almost surely, 2^{10278451017691} is an apocalyptic number.

10278451017691 is a deficient number, since it is larger than the sum of its proper divisors (1).

10278451017691 is an equidigital number, since it uses as much as digits as its factorization.

10278451017691 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 846720, while the sum is 52.

The spelling of 10278451017691 in words is "ten trillion, two hundred seventy-eight billion, four hundred fifty-one million, seventeen thousand, six hundred ninety-one".