338417952891 has 8 divisors (see below), whose sum is σ = 451229508624. Its totient is φ = 225609182880.

The previous prime is 338417952881. The next prime is 338417952923. The reversal of 338417952891 is 198259714833.

It is a happy number.

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

It is not a de Polignac number, because 338417952891 - 2⁶ = 338417952827 is a prime.

It is a super-2 number, since 2×338417952891² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (338417952841) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394236 + ... + 912281.

It is an arithmetic number, because the mean of its divisors is an integer number (56403688578).

Almost surely, 2^338417952891 is an apocalyptic number.

338417952891 is a deficient number, since it is larger than the sum of its proper divisors (112811555733).

338417952891 is a wasteful number, since it uses less digits than its factorization.

338417952891 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1392861.

The product of its digits is 13063680, while the sum is 60.

The spelling of 338417952891 in words is "three hundred thirty-eight billion, four hundred seventeen million, nine hundred fifty-two thousand, eight hundred ninety-one".