870607215420 has 48 divisors (see below), whose sum is σ = 2461835865888. Its totient is φ = 229863289600.

The previous prime is 870607215409. The next prime is 870607215433. The reversal of 870607215420 is 24512706078.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 71826219 + ... + 71838338.

It is an arithmetic number, because the mean of its divisors is an integer number (51288247206).

Almost surely, 2^870607215420 is an apocalyptic number.

It is an amenable number.

870607215420 is an abundant number, since it is smaller than the sum of its proper divisors (1591228650468).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

870607215420 is a wasteful number, since it uses less digits than its factorization.

870607215420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143664670 (or 143664668 counting only the distinct ones).

The product of its (nonzero) digits is 188160, while the sum is 42.

The spelling of 870607215420 in words is "eight hundred seventy billion, six hundred seven million, two hundred fifteen thousand, four hundred twenty".