879991762901 has 2 divisors, whose sum is σ = 879991762902. Its totient is φ = 879991762900.

The previous prime is 879991762849. The next prime is 879991762963. The reversal of 879991762901 is 109267199978.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 879140640625 + 851122276 = 937625^2 + 29174^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-879991762901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (879991762981) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 439995881450 + 439995881451.

It is an arithmetic number, because the mean of its divisors is an integer number (439995881451).

Almost surely, 2^879991762901 is an apocalyptic number.

It is an amenable number.

879991762901 is a deficient number, since it is larger than the sum of its proper divisors (1).

879991762901 is an equidigital number, since it uses as much as digits as its factorization.

879991762901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 30862944, while the sum is 68.

The spelling of 879991762901 in words is "eight hundred seventy-nine billion, nine hundred ninety-one million, seven hundred sixty-two thousand, nine hundred one".