870615483816555 has 48 divisors (see below), whose sum is σ = 1510430272116480. Its totient is φ = 463908834883584.

The previous prime is 870615483816527. The next prime is 870615483816577. The reversal of 870615483816555 is 555618384516078.

It is a happy number.

870615483816555 is a `hidden beast` number, since 8 + 7 + 0 + 6 + 1 + 5 + 483 + 81 + 65 + 5 + 5 = 666.

It is not a de Polignac number, because 870615483816555 - 2¹⁴ = 870615483800171 is a prime.

It is a super-2 number, since 2×870615483816555² (a number of 31 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 441598231 + ... + 443565359.

It is an arithmetic number, because the mean of its divisors is an integer number (31467297335760).

Almost surely, 2^{870615483816555} is an apocalyptic number.

870615483816555 is a deficient number, since it is larger than the sum of its proper divisors (639814788299925).

870615483816555 is a wasteful number, since it uses less digits than its factorization.

870615483816555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976020 (or 1976017 counting only the distinct ones).

The product of its (nonzero) digits is 967680000, while the sum is 72.

The spelling of 870615483816555 in words is "eight hundred seventy trillion, six hundred fifteen billion, four hundred eighty-three million, eight hundred sixteen thousand, five hundred fifty-five".