38557772823857 has 8 divisors (see below), whose sum is σ = 44068008628800. Its totient is φ = 33048032655024.

The previous prime is 38557772823853. The next prime is 38557772823917. The reversal of 38557772823857 is 75832827775583.

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 38557772823857 - 2² = 38557772823853 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (38557772823851) 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, 123742307 + ... + 124053512.

It is an arithmetic number, because the mean of its divisors is an integer number (5508501078600).

Almost surely, 2^{38557772823857} is an apocalyptic number.

It is an amenable number.

38557772823857 is a deficient number, since it is larger than the sum of its proper divisors (5510235804943).

38557772823857 is a wasteful number, since it uses less digits than its factorization.

38557772823857 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 247818055.

The product of its digits is 5531904000, while the sum is 77.

The spelling of 38557772823857 in words is "thirty-eight trillion, five hundred fifty-seven billion, seven hundred seventy-two million, eight hundred twenty-three thousand, eight hundred fifty-seven".