338402812177 has 4 divisors (see below), whose sum is σ = 338738197540. Its totient is φ = 338067426816.

The previous prime is 338402812159. The next prime is 338402812183. The reversal of 338402812177 is 771218204833.

It is a Cunningham number, because it is equal to 581724²+1.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 103866976656 + 234535835521 = 322284^2 + 484289^2 .

It is a cyclic number.

It is not a de Polignac number, because 338402812177 - 2²³ = 338394423569 is a prime.

It is a super-2 number, since 2×338402812177² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (338402816177) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 167691168 + ... + 167693185.

It is an arithmetic number, because the mean of its divisors is an integer number (84684549385).

Almost surely, 2^338402812177 is an apocalyptic number.

It is an amenable number.

338402812177 is a deficient number, since it is larger than the sum of its proper divisors (335385363).

338402812177 is a wasteful number, since it uses less digits than its factorization.

338402812177 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 335385362.

The product of its (nonzero) digits is 451584, while the sum is 46.

The spelling of 338402812177 in words is "three hundred thirty-eight billion, four hundred two million, eight hundred twelve thousand, one hundred seventy-seven".