85670280838 has 4 divisors (see below), whose sum is σ = 128505421260. Its totient is φ = 42835140418.

The previous prime is 85670280827. The next prime is 85670280853. The reversal of 85670280838 is 83808207658.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21417570208 + ... + 21417570211.

It is an arithmetic number, because the mean of its divisors is an integer number (32126355315).

Almost surely, 2^85670280838 is an apocalyptic number.

85670280838 is a deficient number, since it is larger than the sum of its proper divisors (42835140422).

85670280838 is a wasteful number, since it uses less digits than its factorization.

85670280838 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42835140421.

The product of its (nonzero) digits is 5160960, while the sum is 55.

The spelling of 85670280838 in words is "eighty-five billion, six hundred seventy million, two hundred eighty thousand, eight hundred thirty-eight".