268821481629 has 8 divisors (see below), whose sum is σ = 358535299072. Its totient is φ = 179160992640.

The previous prime is 268821481543. The next prime is 268821481667. The reversal of 268821481629 is 926184128862.

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

It is not a de Polignac number, because 268821481629 - 2⁷ = 268821481501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268821481699) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13320349 + ... + 13340514.

It is an arithmetic number, because the mean of its divisors is an integer number (44816912384).

Almost surely, 2^268821481629 is an apocalyptic number.

It is an amenable number.

268821481629 is a deficient number, since it is larger than the sum of its proper divisors (89713817443).

268821481629 is a wasteful number, since it uses less digits than its factorization.

268821481629 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26664227.

The product of its digits is 5308416, while the sum is 57.

The spelling of 268821481629 in words is "two hundred sixty-eight billion, eight hundred twenty-one million, four hundred eighty-one thousand, six hundred twenty-nine".