338575128541 has 4 divisors (see below), whose sum is σ = 364619369212. Its totient is φ = 312530887872.

The previous prime is 338575128487. The next prime is 338575128583. The reversal of 338575128541 is 145821575833.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 145821575833 = 362431 ⋅402343.

It can be written as a sum of positive squares in 2 ways, for example, as 88521125625 + 250054002916 = 297525^2 + 500054^2 .

It is a cyclic number.

It is not a de Polignac number, because 338575128541 - 2⁷ = 338575128413 is a prime.

It is a super-2 number, since 2×338575128541² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (338575108541) 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, 13022120316 + ... + 13022120341.

It is an arithmetic number, because the mean of its divisors is an integer number (91154842303).

Almost surely, 2^338575128541 is an apocalyptic number.

It is an amenable number.

338575128541 is a deficient number, since it is larger than the sum of its proper divisors (26044240671).

338575128541 is a wasteful number, since it uses less digits than its factorization.

338575128541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26044240670.

The product of its digits is 4032000, while the sum is 52.

The spelling of 338575128541 in words is "three hundred thirty-eight billion, five hundred seventy-five million, one hundred twenty-eight thousand, five hundred forty-one".