867531997233 has 24 divisors (see below), whose sum is σ = 1367049917376. Its totient is φ = 525765506400.

The previous prime is 867531997103. The next prime is 867531997249. The reversal of 867531997233 is 332799135768.

867531997233 is a `hidden beast` number, since 8 + 6 + 7 + 531 + 9 + 97 + 2 + 3 + 3 = 666.

It is not a de Polignac number, because 867531997233 - 2¹⁴ = 867531980849 is a prime.

It is a super-2 number, since 2×867531997233² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (867531990233) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7520316 + ... + 7634802.

It is an arithmetic number, because the mean of its divisors is an integer number (56960413224).

Almost surely, 2^867531997233 is an apocalyptic number.

It is an amenable number.

867531997233 is a deficient number, since it is larger than the sum of its proper divisors (499517920143).

867531997233 is a wasteful number, since it uses less digits than its factorization.

867531997233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191045 (or 191042 counting only the distinct ones).

The product of its digits is 51438240, while the sum is 63.

The spelling of 867531997233 in words is "eight hundred sixty-seven billion, five hundred thirty-one million, nine hundred ninety-seven thousand, two hundred thirty-three".