26797655357 has 4 divisors (see below), whose sum is σ = 29233805856. Its totient is φ = 24361504860.

The previous prime is 26797655351. The next prime is 26797655363. The reversal of 26797655357 is 75355679762.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (26797655351) and next prime (26797655363).

It is not a de Polignac number, because 26797655357 - 2³⁰ = 25723913533 is a prime.

It is a super-2 number, since 2×26797655357² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 26797655357.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26797655351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1218075233 + ... + 1218075254.

It is an arithmetic number, because the mean of its divisors is an integer number (7308451464).

Almost surely, 2^26797655357 is an apocalyptic number.

It is an amenable number.

26797655357 is a deficient number, since it is larger than the sum of its proper divisors (2436150499).

26797655357 is a wasteful number, since it uses less digits than its factorization.

26797655357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2436150498.

The product of its digits is 83349000, while the sum is 62.

The spelling of 26797655357 in words is "twenty-six billion, seven hundred ninety-seven million, six hundred fifty-five thousand, three hundred fifty-seven".