806638559377 has 8 divisors (see below), whose sum is σ = 922852320192. Its totient is φ = 690669718800.

The previous prime is 806638559369. The next prime is 806638559411. The reversal of 806638559377 is 773955836608.

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

It is a cyclic number.

It is not a de Polignac number, because 806638559377 - 2³ = 806638559369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (806638559477) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 61222999 + ... + 61236172.

It is an arithmetic number, because the mean of its divisors is an integer number (115356540024).

Almost surely, 2^806638559377 is an apocalyptic number.

It is an amenable number.

806638559377 is a deficient number, since it is larger than the sum of its proper divisors (116213760815).

806638559377 is a wasteful number, since it uses less digits than its factorization.

806638559377 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122460119.

The product of its (nonzero) digits is 228614400, while the sum is 67.

The spelling of 806638559377 in words is "eight hundred six billion, six hundred thirty-eight million, five hundred fifty-nine thousand, three hundred seventy-seven".