233978564405 has 8 divisors (see below), whose sum is σ = 297290411352. Its totient is φ = 176172095488.

The previous prime is 233978564389. The next prime is 233978564429. The reversal of 233978564405 is 504465879332.

It can be written as a sum of positive squares in 4 ways, for example, as 132374451889 + 101604112516 = 363833^2 + 318754^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 233978564405 - 2⁴ = 233978564389 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1376344412 + ... + 1376344581.

It is an arithmetic number, because the mean of its divisors is an integer number (37161301419).

Almost surely, 2^233978564405 is an apocalyptic number.

It is an amenable number.

233978564405 is a deficient number, since it is larger than the sum of its proper divisors (63311846947).

233978564405 is a wasteful number, since it uses less digits than its factorization.

233978564405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752689015.

The product of its (nonzero) digits is 21772800, while the sum is 56.

The spelling of 233978564405 in words is "two hundred thirty-three billion, nine hundred seventy-eight million, five hundred sixty-four thousand, four hundred five".