870612138235478 has 16 divisors (see below), whose sum is σ = 1382806927862640. Its totient is φ = 409679088297216.

The previous prime is 870612138235471. The next prime is 870612138235487. The reversal of 870612138235478 is 874532831216078.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870612138235471) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 647489168 + ... + 648832371.

It is an arithmetic number, because the mean of its divisors is an integer number (86425432991415).

Almost surely, 2^{870612138235478} is an apocalyptic number.

870612138235478 is a deficient number, since it is larger than the sum of its proper divisors (512194789627162).

870612138235478 is a wasteful number, since it uses less digits than its factorization.

870612138235478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1296341311.

The product of its (nonzero) digits is 108380160, while the sum is 65.

The spelling of 870612138235478 in words is "eight hundred seventy trillion, six hundred twelve billion, one hundred thirty-eight million, two hundred thirty-five thousand, four hundred seventy-eight".