213256502672 has 20 divisors (see below), whose sum is σ = 415347749376. Its totient is φ = 106069986720.

The previous prime is 213256502671. The next prime is 213256502681. The reversal of 213256502672 is 276205652312.

It is a super-3 number, since 3×213256502672³ (a number of 35 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (213256502671) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 34888388 + ... + 34894499.

Almost surely, 2^213256502672 is an apocalyptic number.

It is an amenable number.

213256502672 is a deficient number, since it is larger than the sum of its proper divisors (202091246704).

213256502672 is a wasteful number, since it uses less digits than its factorization.

213256502672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 69783086 (or 69783080 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 41.

The spelling of 213256502672 in words is "two hundred thirteen billion, two hundred fifty-six million, five hundred two thousand, six hundred seventy-two".