268464634389 has 32 divisors (see below), whose sum is σ = 481281143040. Its totient is φ = 144384339456.

The previous prime is 268464634367. The next prime is 268464634483. The reversal of 268464634389 is 983436464862.

268464634389 is a `hidden beast` number, since 2 + 6 + 84 + 64 + 63 + 438 + 9 = 666.

It is not a de Polignac number, because 268464634389 - 2¹¹ = 268464632341 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (63).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268464634349) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 41774664 + ... + 41781089.

It is an arithmetic number, because the mean of its divisors is an integer number (15040035720).

Almost surely, 2^268464634389 is an apocalyptic number.

It is an amenable number.

268464634389 is a deficient number, since it is larger than the sum of its proper divisors (212816508651).

268464634389 is a wasteful number, since it uses less digits than its factorization.

268464634389 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 83555786 (or 83555780 counting only the distinct ones).

The product of its digits is 143327232, while the sum is 63.

The spelling of 268464634389 in words is "two hundred sixty-eight billion, four hundred sixty-four million, six hundred thirty-four thousand, three hundred eighty-nine".