268487984881 has 8 divisors (see below), whose sum is σ = 282206352384. Its totient is φ = 254940032160.

The previous prime is 268487984861. The next prime is 268487984923. The reversal of 268487984881 is 188489784862.

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 268487984881 - 2¹⁵ = 268487952113 is a prime.

It is a super-2 number, since 2×268487984881² (a number of 24 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (268487984801) 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, 42600465 + ... + 42606766.

It is an arithmetic number, because the mean of its divisors is an integer number (35275794048).

Almost surely, 2^268487984881 is an apocalyptic number.

It is an amenable number.

268487984881 is a deficient number, since it is larger than the sum of its proper divisors (13718367503).

268487984881 is a wasteful number, since it uses less digits than its factorization.

268487984881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85207391.

The product of its digits is 396361728, while the sum is 73.

The spelling of 268487984881 in words is "two hundred sixty-eight billion, four hundred eighty-seven million, nine hundred eighty-four thousand, eight hundred eighty-one".