268304422557 has 16 divisors (see below), whose sum is σ = 360007776000. Its totient is φ = 177738414144.

The previous prime is 268304422511. The next prime is 268304422567. The reversal of 268304422557 is 755224403862.

It is not a de Polignac number, because 268304422557 - 2²⁰ = 268303373981 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (268304422567) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33957 + ... + 733322.

It is an arithmetic number, because the mean of its divisors is an integer number (22500486000).

Almost surely, 2^268304422557 is an apocalyptic number.

It is an amenable number.

268304422557 is a deficient number, since it is larger than the sum of its proper divisors (91703353443).

268304422557 is a wasteful number, since it uses less digits than its factorization.

268304422557 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 768020.

The product of its (nonzero) digits is 3225600, while the sum is 48.

The spelling of 268304422557 in words is "two hundred sixty-eight billion, three hundred four million, four hundred twenty-two thousand, five hundred fifty-seven".