215133438839 has 8 divisors (see below), whose sum is σ = 248496378768. Its totient is φ = 184071391360.

The previous prime is 215133438769. The next prime is 215133438841. The reversal of 215133438839 is 938834331512.

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

It is a cyclic number.

It is not a de Polignac number, because 215133438839 - 2¹² = 215133434743 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215133438889) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 575222912 + ... + 575223285.

It is an arithmetic number, because the mean of its divisors is an integer number (31062047346).

Almost surely, 2^215133438839 is an apocalyptic number.

215133438839 is a deficient number, since it is larger than the sum of its proper divisors (33362939929).

215133438839 is a wasteful number, since it uses less digits than its factorization.

215133438839 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1150446225.

The product of its digits is 1866240, while the sum is 50.

The spelling of 215133438839 in words is "two hundred fifteen billion, one hundred thirty-three million, four hundred thirty-eight thousand, eight hundred thirty-nine".