93690278861 has 2 divisors, whose sum is σ = 93690278862. Its totient is φ = 93690278860.

The previous prime is 93690278839. The next prime is 93690278879. The reversal of 93690278861 is 16887209639.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 93387692836 + 302586025 = 305594^2 + 17395^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-93690278861 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 93690278861.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (93690278831) 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, 46845139430 + 46845139431.

It is an arithmetic number, because the mean of its divisors is an integer number (46845139431).

Almost surely, 2^93690278861 is an apocalyptic number.

It is an amenable number.

93690278861 is a deficient number, since it is larger than the sum of its proper divisors (1).

93690278861 is an equidigital number, since it uses as much as digits as its factorization.

93690278861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7838208, while the sum is 59.

The spelling of 93690278861 in words is "ninety-three billion, six hundred ninety million, two hundred seventy-eight thousand, eight hundred sixty-one".