870624430605 has 24 divisors (see below), whose sum is σ = 1510135551288. Its totient is φ = 464008966656.

The previous prime is 870624430601. The next prime is 870624430609. The reversal of 870624430605 is 506034426078.

870624430605 is a `hidden beast` number, since 8 + 7 + 0 + 6 + 2 + 4 + 4 + 30 + 605 = 666.

It is an interprime number because it is at equal distance from previous prime (870624430601) and next prime (870624430609).

It can be written as a sum of positive squares in 4 ways, for example, as 289733516361 + 580890914244 = 538269^2 + 762162^2 .

It is not a de Polignac number, because 870624430605 - 2² = 870624430601 is a prime.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (870624430601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6686112 + ... + 6815081.

It is an arithmetic number, because the mean of its divisors is an integer number (62922314637).

Almost surely, 2^870624430605 is an apocalyptic number.

It is an amenable number.

870624430605 is a deficient number, since it is larger than the sum of its proper divisors (639511120683).

870624430605 is a wasteful number, since it uses less digits than its factorization.

870624430605 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13502637 (or 13502634 counting only the distinct ones).

The product of its (nonzero) digits is 967680, while the sum is 45.

The spelling of 870624430605 in words is "eight hundred seventy billion, six hundred twenty-four million, four hundred thirty thousand, six hundred five".