85133469413 has 2 divisors, whose sum is σ = 85133469414. Its totient is φ = 85133469412.

The previous prime is 85133469409. The next prime is 85133469479. The reversal of 85133469413 is 31496433158.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 76097636164 + 9035833249 = 275858^2 + 95057^2 .

It is a cyclic number.

It is not a de Polignac number, because 85133469413 - 2² = 85133469409 is a prime.

It is a super-2 number, since 2×85133469413² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (85133469313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 42566734706 + 42566734707.

It is an arithmetic number, because the mean of its divisors is an integer number (42566734707).

Almost surely, 2^85133469413 is an apocalyptic number.

It is an amenable number.

85133469413 is a deficient number, since it is larger than the sum of its proper divisors (1).

85133469413 is an equidigital number, since it uses as much as digits as its factorization.

85133469413 is an evil number, because the sum of its binary digits is even.

The product of its digits is 933120, while the sum is 47.

The spelling of 85133469413 in words is "eighty-five billion, one hundred thirty-three million, four hundred sixty-nine thousand, four hundred thirteen".