70230287861 has 4 divisors (see below), whose sum is σ = 70234641132. Its totient is φ = 70225934592.

The previous prime is 70230287807. The next prime is 70230287927. The reversal of 70230287861 is 16878203207.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 65482251025 + 4748036836 = 255895^2 + 68906^2 .

It is a cyclic number.

It is not a de Polignac number, because 70230287861 - 2³⁰ = 69156546037 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 (70230287261) 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 3 ways as a sum of consecutive naturals, for example, 2152346 + ... + 2184731.

It is an arithmetic number, because the mean of its divisors is an integer number (17558660283).

Almost surely, 2^70230287861 is an apocalyptic number.

It is an amenable number.

70230287861 is a deficient number, since it is larger than the sum of its proper divisors (4353271).

70230287861 is a wasteful number, since it uses less digits than its factorization.

70230287861 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4353270.

The product of its (nonzero) digits is 225792, while the sum is 44.

The spelling of 70230287861 in words is "seventy billion, two hundred thirty million, two hundred eighty-seven thousand, eight hundred sixty-one".