215486849140 has 24 divisors (see below), whose sum is σ = 452567388672. Its totient is φ = 86186167200.

The previous prime is 215486849129. The next prime is 215486849159. The reversal of 215486849140 is 41948684512.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 327684 + ... + 733723.

It is an arithmetic number, because the mean of its divisors is an integer number (18856974528).

Almost surely, 2^215486849140 is an apocalyptic number.

215486849140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

215486849140 is an abundant number, since it is smaller than the sum of its proper divisors (237080539532).

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

215486849140 is a wasteful number, since it uses less digits than its factorization.

215486849140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1071567 (or 1071565 counting only the distinct ones).

The product of its (nonzero) digits is 2211840, while the sum is 52.

The spelling of 215486849140 in words is "two hundred fifteen billion, four hundred eighty-six million, eight hundred forty-nine thousand, one hundred forty".