233270478981 has 12 divisors (see below), whose sum is σ = 337029476160. Its totient is φ = 155475239400.

The previous prime is 233270478877. The next prime is 233270478983. The reversal of 233270478981 is 189874072332.

233270478981 is a `hidden beast` number, since 23 + 3 + 2 + 70 + 478 + 9 + 81 = 666.

It is not a de Polignac number, because 233270478981 - 2²⁵ = 233236924549 is a prime.

It is a super-2 number, since 2×233270478981² (a number of 24 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (54) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233270478983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3162621 + ... + 3235538.

It is an arithmetic number, because the mean of its divisors is an integer number (28085789680).

Almost surely, 2^233270478981 is an apocalyptic number.

It is an amenable number.

233270478981 is a deficient number, since it is larger than the sum of its proper divisors (103758997179).

233270478981 is a wasteful number, since it uses less digits than its factorization.

233270478981 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6402216 (or 6402213 counting only the distinct ones).

The product of its (nonzero) digits is 4064256, while the sum is 54.

The spelling of 233270478981 in words is "two hundred thirty-three billion, two hundred seventy million, four hundred seventy-eight thousand, nine hundred eighty-one".