268820261537 has 8 divisors (see below), whose sum is σ = 284694134400. Its totient is φ = 252953157184.

The previous prime is 268820261429. The next prime is 268820261579. The reversal of 268820261537 is 735162028862.

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 268820261537 - 2¹⁴ = 268820245153 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (268820261587) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1610237 + ... + 1769322.

It is an arithmetic number, because the mean of its divisors is an integer number (35586766800).

Almost surely, 2^268820261537 is an apocalyptic number.

It is an amenable number.

268820261537 is a deficient number, since it is larger than the sum of its proper divisors (15873872863).

268820261537 is a wasteful number, since it uses less digits than its factorization.

268820261537 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3384255.

The product of its (nonzero) digits is 1935360, while the sum is 50.

The spelling of 268820261537 in words is "two hundred sixty-eight billion, eight hundred twenty million, two hundred sixty-one thousand, five hundred thirty-seven".