85479064121 has 4 divisors (see below), whose sum is σ = 93249888144. Its totient is φ = 77708240100.

The previous prime is 85479064103. The next prime is 85479064141. The reversal of 85479064121 is 12146097458.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 85479064121 - 2¹⁴ = 85479047737 is a prime.

It is a super-3 number, since 3×85479064121³ (a number of 34 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (85479064141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3885411995 + ... + 3885412016.

It is an arithmetic number, because the mean of its divisors is an integer number (23312472036).

Almost surely, 2^85479064121 is an apocalyptic number.

It is an amenable number.

85479064121 is a deficient number, since it is larger than the sum of its proper divisors (7770824023).

85479064121 is a wasteful number, since it uses less digits than its factorization.

85479064121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7770824022.

The product of its (nonzero) digits is 483840, while the sum is 47.

The spelling of 85479064121 in words is "eighty-five billion, four hundred seventy-nine million, sixty-four thousand, one hundred twenty-one".