2405338385537 has 4 divisors (see below), whose sum is σ = 2407314835716. Its totient is φ = 2403361935360.

The previous prime is 2405338385497. The next prime is 2405338385587. The reversal of 2405338385537 is 7355838335042.

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 497047560256 + 1908290825281 = 705016^2 + 1381409^2 .

It is a cyclic number.

It is not a de Polignac number, because 2405338385537 - 2¹⁶ = 2405338320001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2405338385587) 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, 988223264 + ... + 988225697.

It is an arithmetic number, because the mean of its divisors is an integer number (601828708929).

Almost surely, 2^{2405338385537} is an apocalyptic number.

It is an amenable number.

2405338385537 is a deficient number, since it is larger than the sum of its proper divisors (1976450179).

2405338385537 is a wasteful number, since it uses less digits than its factorization.

2405338385537 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1976450178.

The product of its (nonzero) digits is 36288000, while the sum is 56.

The spelling of 2405338385537 in words is "two trillion, four hundred five billion, three hundred thirty-eight million, three hundred eighty-five thousand, five hundred thirty-seven".