1010077508861 has 2 divisors, whose sum is σ = 1010077508862. Its totient is φ = 1010077508860.

The previous prime is 1010077508827. The next prime is 1010077508887. The reversal of 1010077508861 is 1688057700101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 821987023225 + 188090485636 = 906635^2 + 433694^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1010077508861 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010077508801) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505038754430 + 505038754431.

It is an arithmetic number, because the mean of its divisors is an integer number (505038754431).

Almost surely, 2^{1010077508861} is an apocalyptic number.

It is an amenable number.

1010077508861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010077508861 is an equidigital number, since it uses as much as digits as its factorization.

1010077508861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 94080, while the sum is 44.

The spelling of 1010077508861 in words is "one trillion, ten billion, seventy-seven million, five hundred eight thousand, eight hundred sixty-one".