70878287807 has 4 divisors (see below), whose sum is σ = 72607026576. Its totient is φ = 69149549040.

The previous prime is 70878287791. The next prime is 70878287863.

70878287807 is nontrivially palindromic in base 10.

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

It is a cyclic number.

It is not a de Polignac number, because 70878287807 - 2⁴ = 70878287791 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 70878287807.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70878287107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864369323 + ... + 864369404.

It is an arithmetic number, because the mean of its divisors is an integer number (18151756644).

Almost surely, 2^70878287807 is an apocalyptic number.

70878287807 is a deficient number, since it is larger than the sum of its proper divisors (1728738769).

70878287807 is a wasteful number, since it uses less digits than its factorization.

70878287807 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1728738768.

The product of its (nonzero) digits is 19668992, while the sum is 62.

The spelling of 70878287807 in words is "seventy billion, eight hundred seventy-eight million, two hundred eighty-seven thousand, eight hundred seven".