86741955961 has 2 divisors, whose sum is σ = 86741955962. Its totient is φ = 86741955960.

The previous prime is 86741955959. The next prime is 86741956027. The reversal of 86741955961 is 16955914768.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56575476736 + 30166479225 = 237856^2 + 173685^2 .

It is a cyclic number.

It is not a de Polignac number, because 86741955961 - 2¹ = 86741955959 is a prime.

Together with 86741955959, it forms a pair of twin primes.

It is a self number, because there is not a number n which added to its sum of digits gives 86741955961.

It is not a weakly prime, because it can be changed into another prime (86141955961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43370977980 + 43370977981.

It is an arithmetic number, because the mean of its divisors is an integer number (43370977981).

Almost surely, 2^86741955961 is an apocalyptic number.

It is an amenable number.

86741955961 is a deficient number, since it is larger than the sum of its proper divisors (1).

86741955961 is an equidigital number, since it uses as much as digits as its factorization.

86741955961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 16329600, while the sum is 61.

The spelling of 86741955961 in words is "eighty-six billion, seven hundred forty-one million, nine hundred fifty-five thousand, nine hundred sixty-one".