268747645381 has 8 divisors (see below), whose sum is σ = 270553048128. Its totient is φ = 266942580000.

The previous prime is 268747645367. The next prime is 268747645427. The reversal of 268747645381 is 183546747862.

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 268747645381 - 2⁵ = 268747645349 is a prime.

It is a super-2 number, since 2×268747645381² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268747645181) 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, 1630866 + ... + 1788076.

It is an arithmetic number, because the mean of its divisors is an integer number (33819131016).

Almost surely, 2^268747645381 is an apocalyptic number.

It is an amenable number.

268747645381 is a deficient number, since it is larger than the sum of its proper divisors (1805402747).

268747645381 is a wasteful number, since it uses less digits than its factorization.

268747645381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168683.

The product of its digits is 54190080, while the sum is 61.

The spelling of 268747645381 in words is "two hundred sixty-eight billion, seven hundred forty-seven million, six hundred forty-five thousand, three hundred eighty-one".