1077102157861 has 2 divisors, whose sum is σ = 1077102157862. Its totient is φ = 1077102157860.

The previous prime is 1077102157801. The next prime is 1077102157919. The reversal of 1077102157861 is 1687512017701.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 897792255361 + 179309902500 = 947519^2 + 423450^2 .

It is a cyclic number.

It is not a de Polignac number, because 1077102157861 - 2¹¹ = 1077102155813 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1077102157801) 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, 538551078930 + 538551078931.

It is an arithmetic number, because the mean of its divisors is an integer number (538551078931).

Almost surely, 2^{1077102157861} is an apocalyptic number.

It is an amenable number.

1077102157861 is a deficient number, since it is larger than the sum of its proper divisors (1).

1077102157861 is an equidigital number, since it uses as much as digits as its factorization.

1077102157861 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 164640, while the sum is 46.

The spelling of 1077102157861 in words is "one trillion, seventy-seven billion, one hundred two million, one hundred fifty-seven thousand, eight hundred sixty-one".