870615228678670 has 32 divisors (see below), whose sum is σ = 1659294587841696. Its totient is φ = 327760160640000.

The previous prime is 870615228678649. The next prime is 870615228678697. The reversal of 870615228678670 is 76876822516078.

It is a super-2 number, since 2×870615228678670² (a number of 31 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 870615228678593 and 870615228678602.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59622345 + ... + 72773995.

It is an arithmetic number, because the mean of its divisors is an integer number (51852955870053).

Almost surely, 2^{870615228678670} is an apocalyptic number.

870615228678670 is a deficient number, since it is larger than the sum of its proper divisors (788679359163026).

870615228678670 is a wasteful number, since it uses less digits than its factorization.

870615228678670 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13541076.

The product of its (nonzero) digits is 758661120, while the sum is 73.

The spelling of 870615228678670 in words is "eight hundred seventy trillion, six hundred fifteen billion, two hundred twenty-eight million, six hundred seventy-eight thousand, six hundred seventy".