233995117549 has 16 divisors (see below), whose sum is σ = 250694357760. Its totient is φ = 217864563840.

The previous prime is 233995117469. The next prime is 233995117571. The reversal of 233995117549 is 945711599332.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-233995117549 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 233995117493 and 233995117502.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233995117249) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 131359 + ... + 696595.

It is an arithmetic number, because the mean of its divisors is an integer number (15668397360).

Almost surely, 2^233995117549 is an apocalyptic number.

It is an amenable number.

233995117549 is a deficient number, since it is larger than the sum of its proper divisors (16699240211).

233995117549 is a wasteful number, since it uses less digits than its factorization.

233995117549 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 565740.

The product of its digits is 9185400, while the sum is 58.

The spelling of 233995117549 in words is "two hundred thirty-three billion, nine hundred ninety-five million, one hundred seventeen thousand, five hundred forty-nine".