100000500000977 has 2 divisors, whose sum is σ = 100000500000978. Its totient is φ = 100000500000976.

The previous prime is 100000500000943. The next prime is 100000500001009. The reversal of 100000500000977 is 779000005000001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 91894003410496 + 8106496590481 = 9586136^2 + 2847191^2 .

It is a cyclic number.

It is not a de Polignac number, because 100000500000977 - 2⁸ = 100000500000721 is a prime.

It is not a weakly prime, because it can be changed into another prime (100000500000077) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50000250000488 + 50000250000489.

It is an arithmetic number, because the mean of its divisors is an integer number (50000250000489).

Almost surely, 2^{100000500000977} is an apocalyptic number.

It is an amenable number.

100000500000977 is a deficient number, since it is larger than the sum of its proper divisors (1).

100000500000977 is an equidigital number, since it uses as much as digits as its factorization.

100000500000977 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2205, while the sum is 29.

Adding to 100000500000977 its reverse (779000005000001), we get a palindrome (879000505000978).

The spelling of 100000500000977 in words is "one hundred trillion, five hundred million, nine hundred seventy-seven", and thus it is an aban number.