870537723605 has 32 divisors (see below), whose sum is σ = 1174844659968. Its totient is φ = 613741939200.

The previous prime is 870537723557. The next prime is 870537723607. The reversal of 870537723605 is 506327735078.

It is a happy number.

It is not a de Polignac number, because 870537723605 - 2¹⁰ = 870537722581 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 (870537723607) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 875417 + ... + 1583486.

It is an arithmetic number, because the mean of its divisors is an integer number (36713895624).

Almost surely, 2^870537723605 is an apocalyptic number.

It is an amenable number.

870537723605 is a deficient number, since it is larger than the sum of its proper divisors (304306936363).

870537723605 is a wasteful number, since it uses less digits than its factorization.

870537723605 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2459117.

The product of its (nonzero) digits is 7408800, while the sum is 53.

The spelling of 870537723605 in words is "eight hundred seventy billion, five hundred thirty-seven million, seven hundred twenty-three thousand, six hundred five".