263226547645397 has 8 divisors (see below), whose sum is σ = 300830618160576. Its totient is φ = 225622546628832.

The previous prime is 263226547645381. The next prime is 263226547645403. The reversal of 263226547645397 is 793546745622362.

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 263226547645397 - 2⁴ = 263226547645381 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 263226547645397.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (263226547645357) 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, 8988728 + ... + 24642449.

It is an arithmetic number, because the mean of its divisors is an integer number (37603827270072).

Almost surely, 2^{263226547645397} is an apocalyptic number.

It is an amenable number.

263226547645397 is a deficient number, since it is larger than the sum of its proper divisors (37604070515179).

263226547645397 is a wasteful number, since it uses less digits than its factorization.

263226547645397 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34749307.

The product of its digits is 2743372800, while the sum is 71.

The spelling of 263226547645397 in words is "two hundred sixty-three trillion, two hundred twenty-six billion, five hundred forty-seven million, six hundred forty-five thousand, three hundred ninety-seven".