8355622642 has 8 divisors (see below), whose sum is σ = 12535037676. Its totient is φ = 4177276752.

The previous prime is 8355622633. The next prime is 8355622661. The reversal of 8355622642 is 2462265538.

It can be written as a sum of positive squares in 2 ways, for example, as 8275358961 + 80263681 = 90969^2 + 8959^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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, 247453 + ... + 279184.

Almost surely, 2^8355622642 is an apocalyptic number.

8355622642 is a deficient number, since it is larger than the sum of its proper divisors (4179415034).

8355622642 is a wasteful number, since it uses less digits than its factorization.

8355622642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 534572.

The product of its digits is 691200, while the sum is 43.

The square root of 8355622642 is about 91409.0949632475. The cubic root of 8355622642 is about 2029.2066303670.

The spelling of 8355622642 in words is "eight billion, three hundred fifty-five million, six hundred twenty-two thousand, six hundred forty-two".