7838666353 has 8 divisors (see below), whose sum is σ = 9429974720. Its totient is φ = 6365232720.

The previous prime is 7838666291. The next prime is 7838666387. The reversal of 7838666353 is 3536668387.

7838666353 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 7838666353 - 2¹⁷ = 7838535281 is a prime.

It is a super-2 number, since 2×7838666353² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7838666294 and 7838666303.

It is not an unprimeable number, because it can be changed into a prime (7838666393) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 29468538 + ... + 29468803.

It is an arithmetic number, because the mean of its divisors is an integer number (1178746840).

Almost surely, 2^7838666353 is an apocalyptic number.

It is an amenable number.

7838666353 is a deficient number, since it is larger than the sum of its proper divisors (1591308367).

7838666353 is a wasteful number, since it uses less digits than its factorization.

7838666353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58937367.

The product of its digits is 13063680, while the sum is 55.

The square root of 7838666353 is about 88536.2431606402. The cubic root of 7838666353 is about 1986.4641261463.

It can be divided in two parts, 783 and 8666353, that added together give a square (8667136 = 2944²).

The spelling of 7838666353 in words is "seven billion, eight hundred thirty-eight million, six hundred sixty-six thousand, three hundred fifty-three".