215839105392 has 20 divisors (see below), whose sum is σ = 557584355720. Its totient is φ = 71946368448.

The previous prime is 215839105379. The next prime is 215839105393. The reversal of 215839105392 is 293501938512.

It is a Harshad number since it is a multiple of its sum of digits (48), and also a Moran number because the ratio is a prime number: 4496648029 = 215839105392 / (2 + 1 + 5 + 8 + 3 + 9 + 1 + 0 + 5 + 3 + 9 + 2).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215839105393) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2248323967 + ... + 2248324062.

It is an arithmetic number, because the mean of its divisors is an integer number (27879217786).

Almost surely, 2^215839105392 is an apocalyptic number.

It is an amenable number.

215839105392 is an abundant number, since it is smaller than the sum of its proper divisors (341745250328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

215839105392 is a wasteful number, since it uses less digits than its factorization.

215839105392 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4496648040 (or 4496648034 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 48.

The spelling of 215839105392 in words is "two hundred fifteen billion, eight hundred thirty-nine million, one hundred five thousand, three hundred ninety-two".