85434071522 has 30 divisors (see below), whose sum is σ = 133229450145. Its totient is φ = 41088182800.

The previous prime is 85434071507. The next prime is 85434071581. The reversal of 85434071522 is 22517043458.

It can be written as a sum of positive squares in 2 ways, for example, as 61013446081 + 24420625441 = 247009^2 + 156271^2 .

It is an ABA number since it can be written as A⋅B^A, here for A=2, B=206681.

It is a super-2 number, since 2×85434071522² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 85434071522.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1203296747 + ... + 1203296817.

Almost surely, 2^85434071522 is an apocalyptic number.

85434071522 is a gapful number since it is divisible by the number (82) formed by its first and last digit.

85434071522 is a deficient number, since it is larger than the sum of its proper divisors (47795378623).

85434071522 is an frugal number, since it uses more digits than its factorization.

85434071522 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 368 (or 114 counting only the distinct ones).

The product of its (nonzero) digits is 268800, while the sum is 41.

The spelling of 85434071522 in words is "eighty-five billion, four hundred thirty-four million, seventy-one thousand, five hundred twenty-two".