806227342642 has 4 divisors (see below), whose sum is σ = 1209341013966. Its totient is φ = 403113671320.

The previous prime is 806227342579. The next prime is 806227342649. The reversal of 806227342642 is 246243722608.

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., 639182661121 + 167044681521 = 799489^2 + 408711^2 .

It is a junction number, because it is equal to n+sod(n) for n = 806227342592 and 806227342601.

It is not an unprimeable number, because it can be changed into a prime (806227342649) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 201556835659 + ... + 201556835662.

Almost surely, 2^806227342642 is an apocalyptic number.

806227342642 is a deficient number, since it is larger than the sum of its proper divisors (403113671324).

806227342642 is a wasteful number, since it uses less digits than its factorization.

806227342642 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 403113671323.

The product of its (nonzero) digits is 1548288, while the sum is 46.

The spelling of 806227342642 in words is "eight hundred six billion, two hundred twenty-seven million, three hundred forty-two thousand, six hundred forty-two".