85434125215 has 8 divisors (see below), whose sum is σ = 104702247360. Its totient is φ = 66893102112.

The previous prime is 85434125159. The next prime is 85434125219. The reversal of 85434125215 is 51252143458.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 85434125215 - 2²³ = 85425736607 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85434125219) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 181774500 + ... + 181774969.

It is an arithmetic number, because the mean of its divisors is an integer number (13087780920).

Almost surely, 2^85434125215 is an apocalyptic number.

85434125215 is a deficient number, since it is larger than the sum of its proper divisors (19268122145).

85434125215 is a wasteful number, since it uses less digits than its factorization.

85434125215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 363549521.

The product of its digits is 192000, while the sum is 40.

The spelling of 85434125215 in words is "eighty-five billion, four hundred thirty-four million, one hundred twenty-five thousand, two hundred fifteen".