85280628838 has 8 divisors (see below), whose sum is σ = 127923095088. Its totient is φ = 42639597144.

The previous prime is 85280628827. The next prime is 85280628841. The reversal of 85280628838 is 83882608258.

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

It is a congruent number.

It is an unprimeable number.

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, 195106 + ... + 456757.

It is an arithmetic number, because the mean of its divisors is an integer number (15990386886).

Almost surely, 2^85280628838 is an apocalyptic number.

85280628838 is a deficient number, since it is larger than the sum of its proper divisors (42642466250).

85280628838 is a wasteful number, since it uses less digits than its factorization.

85280628838 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717278.

The product of its (nonzero) digits is 11796480, while the sum is 58.

The spelling of 85280628838 in words is "eighty-five billion, two hundred eighty million, six hundred twenty-eight thousand, eight hundred thirty-eight".