215448039885 has 64 divisors (see below), whose sum is σ = 376840235520. Its totient is φ = 104467829760.

The previous prime is 215448039883. The next prime is 215448039907. The reversal of 215448039885 is 588930844512.

It is not a de Polignac number, because 215448039885 - 2¹ = 215448039883 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215448039883) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14793027 + ... + 14807583.

It is an arithmetic number, because the mean of its divisors is an integer number (5888128680).

Almost surely, 2^215448039885 is an apocalyptic number.

It is an amenable number.

215448039885 is a deficient number, since it is larger than the sum of its proper divisors (161392195635).

215448039885 is a wasteful number, since it uses less digits than its factorization.

215448039885 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15718.

The product of its (nonzero) digits is 11059200, while the sum is 57.

The spelling of 215448039885 in words is "two hundred fifteen billion, four hundred forty-eight million, thirty-nine thousand, eight hundred eighty-five".