233809778672 has 20 divisors (see below), whose sum is σ = 453015401736. Its totient is φ = 116902578240.

The previous prime is 233809778617. The next prime is 233809778677. The reversal of 233809778672 is 276877908332.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233809778677) 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, 934343 + ... + 1157849.

Almost surely, 2^233809778672 is an apocalyptic number.

It is an amenable number.

233809778672 is a deficient number, since it is larger than the sum of its proper divisors (219205623064).

233809778672 is a wasteful number, since it uses less digits than its factorization.

233809778672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 288896 (or 288890 counting only the distinct ones).

The product of its (nonzero) digits is 42674688, while the sum is 62.

The spelling of 233809778672 in words is "two hundred thirty-three billion, eight hundred nine million, seven hundred seventy-eight thousand, six hundred seventy-two".