2536838389421 has 24 divisors (see below), whose sum is σ = 3125128530240. Its totient is φ = 2046182366592.

The previous prime is 2536838389403. The next prime is 2536838389433. The reversal of 2536838389421 is 1249838386352.

It is a happy number.

It is not a de Polignac number, because 2536838389421 - 2¹⁴ = 2536838373037 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2536838389471) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4781840 + ... + 5285798.

It is an arithmetic number, because the mean of its divisors is an integer number (130213688760).

Almost surely, 2^{2536838389421} is an apocalyptic number.

It is an amenable number.

2536838389421 is a deficient number, since it is larger than the sum of its proper divisors (588290140819).

2536838389421 is a wasteful number, since it uses less digits than its factorization.

2536838389421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510033 (or 510026 counting only the distinct ones).

The product of its digits is 59719680, while the sum is 62.

The spelling of 2536838389421 in words is "two trillion, five hundred thirty-six billion, eight hundred thirty-eight million, three hundred eighty-nine thousand, four hundred twenty-one".