268153636 has 12 divisors (see below), whose sum is σ = 469496412. Its totient is φ = 134011808.

The previous prime is 268153609. The next prime is 268153637. The reversal of 268153636 is 636351862.

268153636 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 2 ways, for example, as 211993600 + 56160036 = 14560^2 + 7494^2 .

It is not an unprimeable number, because it can be changed into a prime (268153637) 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, 6295 + ... + 23998.

It is an arithmetic number, because the mean of its divisors is an integer number (39124701).

Almost surely, 2^268153636 is an apocalyptic number.

It is an amenable number.

268153636 is a deficient number, since it is larger than the sum of its proper divisors (201342776).

268153636 is a wasteful number, since it uses less digits than its factorization.

268153636 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32510 (or 32508 counting only the distinct ones).

The product of its digits is 155520, while the sum is 40.

The square root of 268153636 is about 16375.3972776235. The cubic root of 268153636 is about 644.8537504682.

The spelling of 268153636 in words is "two hundred sixty-eight million, one hundred fifty-three thousand, six hundred thirty-six".