870612142563880 has 16 divisors (see below), whose sum is σ = 1958877320768820. Its totient is φ = 348244857025536.

The previous prime is 870612142563811. The next prime is 870612142563887. The reversal of 870612142563880 is 88365241216078.

It can be written as a sum of positive squares in 2 ways, for example, as 869696550021924 + 915592541956 = 29490618^2 + 956866^2 .

It is not an unprimeable number, because it can be changed into a prime (870612142563887) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10882651782009 + ... + 10882651782088.

Almost surely, 2^{870612142563880} is an apocalyptic number.

It is an amenable number.

870612142563880 is an abundant number, since it is smaller than the sum of its proper divisors (1088265178204940).

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

870612142563880 is a wasteful number, since it uses less digits than its factorization.

870612142563880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21765303564108 (or 21765303564104 counting only the distinct ones).

The product of its (nonzero) digits is 30965760, while the sum is 61.

The spelling of 870612142563880 in words is "eight hundred seventy trillion, six hundred twelve billion, one hundred forty-two million, five hundred sixty-three thousand, eight hundred eighty".