213485281088 has 14 divisors (see below), whose sum is σ = 423634854786. Its totient is φ = 106742640512.

The previous prime is 213485281073. The next prime is 213485281091. The reversal of 213485281088 is 880182584312.

It can be written as a sum of positive squares in only one way, i.e., 120708994624 + 92776286464 = 347432^2 + 304592^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1667853695 + ... + 1667853822.

Almost surely, 2^213485281088 is an apocalyptic number.

It is an amenable number.

213485281088 is a deficient number, since it is larger than the sum of its proper divisors (210149573698).

213485281088 is an equidigital number, since it uses as much as digits as its factorization.

213485281088 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3335707529 (or 3335707519 counting only the distinct ones).

The product of its (nonzero) digits is 983040, while the sum is 50.

The spelling of 213485281088 in words is "two hundred thirteen billion, four hundred eighty-five million, two hundred eighty-one thousand, eighty-eight".