86525364973 has 2 divisors, whose sum is σ = 86525364974. Its totient is φ = 86525364972.

The previous prime is 86525364923. The next prime is 86525364977. The reversal of 86525364973 is 37946352568.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 73860563529 + 12664801444 = 271773^2 + 112538^2 .

It is a cyclic number.

It is not a de Polignac number, because 86525364973 - 2⁹ = 86525364461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (86525364977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 43262682486 + 43262682487.

It is an arithmetic number, because the mean of its divisors is an integer number (43262682487).

Almost surely, 2^86525364973 is an apocalyptic number.

It is an amenable number.

86525364973 is a deficient number, since it is larger than the sum of its proper divisors (1).

86525364973 is an equidigital number, since it uses as much as digits as its factorization.

86525364973 is an evil number, because the sum of its binary digits is even.

The product of its digits is 32659200, while the sum is 58.

The spelling of 86525364973 in words is "eighty-six billion, five hundred twenty-five million, three hundred sixty-four thousand, nine hundred seventy-three".