1087034655961 has 2 divisors, whose sum is σ = 1087034655962. Its totient is φ = 1087034655960.

The previous prime is 1087034655919. The next prime is 1087034656129. The reversal of 1087034655961 is 1695564307801.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 805981995225 + 281052660736 = 897765^2 + 530144^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1087034655961 is a prime.

It is not a weakly prime, because it can be changed into another prime (1087034655761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 543517327980 + 543517327981.

It is an arithmetic number, because the mean of its divisors is an integer number (543517327981).

Almost surely, 2^{1087034655961} is an apocalyptic number.

It is an amenable number.

1087034655961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1087034655961 is an equidigital number, since it uses as much as digits as its factorization.

1087034655961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5443200, while the sum is 55.

The spelling of 1087034655961 in words is "one trillion, eighty-seven billion, thirty-four million, six hundred fifty-five thousand, nine hundred sixty-one".