85652662019 has 2 divisors, whose sum is σ = 85652662020. Its totient is φ = 85652662018.

The previous prime is 85652661959. The next prime is 85652662091. The reversal of 85652662019 is 91026625658.

Together with next prime (85652662091) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 85652662019 - 2¹⁶ = 85652596483 is a prime.

It is a super-2 number, since 2×85652662019² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (85652632019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42826331009 + 42826331010.

It is an arithmetic number, because the mean of its divisors is an integer number (42826331010).

Almost surely, 2^85652662019 is an apocalyptic number.

85652662019 is a deficient number, since it is larger than the sum of its proper divisors (1).

85652662019 is an equidigital number, since it uses as much as digits as its factorization.

85652662019 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1555200, while the sum is 50.

The spelling of 85652662019 in words is "eighty-five billion, six hundred fifty-two million, six hundred sixty-two thousand, nineteen".