26391770993103 has 8 divisors (see below), whose sum is σ = 35189051990400. Its totient is φ = 17594501995608.

The previous prime is 26391770993089. The next prime is 26391770993111. The reversal of 26391770993103 is 30139907719362.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 26391770993103 - 2²¹ = 26391768895951 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26391770993113) 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, 5925118 + ... + 9374996.

It is an arithmetic number, because the mean of its divisors is an integer number (4398631498800).

Almost surely, 2^{26391770993103} is an apocalyptic number.

26391770993103 is a deficient number, since it is larger than the sum of its proper divisors (8797280997297).

26391770993103 is a wasteful number, since it uses less digits than its factorization.

26391770993103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5999901.

The product of its (nonzero) digits is 11573604, while the sum is 60.

The spelling of 26391770993103 in words is "twenty-six trillion, three hundred ninety-one billion, seven hundred seventy million, nine hundred ninety-three thousand, one hundred three".