215481400814882 has 32 divisors (see below), whose sum is σ = 340382678803200. Its totient is φ = 102025474333200.

The previous prime is 215481400814843. The next prime is 215481400814971. The reversal of 215481400814882 is 288418004184512.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4098214469 + ... + 4098267047.

It is an arithmetic number, because the mean of its divisors is an integer number (10636958712600).

Almost surely, 2^{215481400814882} is an apocalyptic number.

215481400814882 is a deficient number, since it is larger than the sum of its proper divisors (124901277988318).

215481400814882 is a wasteful number, since it uses less digits than its factorization.

215481400814882 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97742.

The product of its (nonzero) digits is 5242880, while the sum is 56.

The spelling of 215481400814882 in words is "two hundred fifteen trillion, four hundred eighty-one billion, four hundred million, eight hundred fourteen thousand, eight hundred eighty-two".