86953895812261 has 2 divisors, whose sum is σ = 86953895812262. Its totient is φ = 86953895812260.

The previous prime is 86953895812213. The next prime is 86953895812307. The reversal of 86953895812261 is 16221859835968.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 49923141428161 + 37030754384100 = 7065631^2 + 6085290^2 .

It is a cyclic number.

It is not a de Polignac number, because 86953895812261 - 2²³ = 86953887423653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86953895812961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43476947906130 + 43476947906131.

It is an arithmetic number, because the mean of its divisors is an integer number (43476947906131).

Almost surely, 2^{86953895812261} is an apocalyptic number.

It is an amenable number.

86953895812261 is a deficient number, since it is larger than the sum of its proper divisors (1).

86953895812261 is an equidigital number, since it uses as much as digits as its factorization.

86953895812261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 447897600, while the sum is 73.

The spelling of 86953895812261 in words is "eighty-six trillion, nine hundred fifty-three billion, eight hundred ninety-five million, eight hundred twelve thousand, two hundred sixty-one".