338666401822869 has 12 divisors (see below), whose sum is σ = 489276222026592. Its totient is φ = 225735407649000.

The previous prime is 338666401822849. The next prime is 338666401822927. The reversal of 338666401822869 is 968228104666833.

It is not a de Polignac number, because 338666401822869 - 2²⁹ = 338665864951957 is a prime.

It is a super-2 number, since 2×338666401822869² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 338666401822797 and 338666401822806.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338666401822849) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3516079687 + ... + 3516176004.

It is an arithmetic number, because the mean of its divisors is an integer number (40773018502216).

Almost surely, 2^{338666401822869} is an apocalyptic number.

It is an amenable number.

338666401822869 is a deficient number, since it is larger than the sum of its proper divisors (150609820203723).

338666401822869 is a wasteful number, since it uses less digits than its factorization.

338666401822869 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7032261048 (or 7032261045 counting only the distinct ones).

The product of its (nonzero) digits is 859963392, while the sum is 72.

The spelling of 338666401822869 in words is "three hundred thirty-eight trillion, six hundred sixty-six billion, four hundred one million, eight hundred twenty-two thousand, eight hundred sixty-nine".