85670555213 has 4 divisors (see below), whose sum is σ = 85794536448. Its totient is φ = 85546573980.

The previous prime is 85670555197. The next prime is 85670555221. The reversal of 85670555213 is 31255507658.

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 85670555213 - 2⁴ = 85670555197 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (85670555413) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 61989581 + ... + 61990962.

It is an arithmetic number, because the mean of its divisors is an integer number (21448634112).

Almost surely, 2^85670555213 is an apocalyptic number.

It is an amenable number.

85670555213 is a deficient number, since it is larger than the sum of its proper divisors (123981235).

85670555213 is a wasteful number, since it uses less digits than its factorization.

85670555213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123981234.

The product of its (nonzero) digits is 1260000, while the sum is 47.

The spelling of 85670555213 in words is "eighty-five billion, six hundred seventy million, five hundred fifty-five thousand, two hundred thirteen".