806712513242 has 4 divisors (see below), whose sum is σ = 1210068769866. Its totient is φ = 403356256620.

The previous prime is 806712513193. The next prime is 806712513287. The reversal of 806712513242 is 242315217608.

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

It can be written as a sum of positive squares in only one way, i.e., 802208626921 + 4503886321 = 895661^2 + 67111^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 806712513242.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201678128309 + ... + 201678128312.

Almost surely, 2^806712513242 is an apocalyptic number.

806712513242 is a deficient number, since it is larger than the sum of its proper divisors (403356256624).

806712513242 is a wasteful number, since it uses less digits than its factorization.

806712513242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 403356256623.

The product of its (nonzero) digits is 161280, while the sum is 41.

The spelling of 806712513242 in words is "eight hundred six billion, seven hundred twelve million, five hundred thirteen thousand, two hundred forty-two".