26402155630503 has 16 divisors (see below), whose sum is σ = 35381696064000. Its totient is φ = 17512035757920.

The previous prime is 26402155630481. The next prime is 26402155630549. The reversal of 26402155630503 is 30503655120462.

It is a happy number.

It is not a de Polignac number, because 26402155630503 - 2¹⁸ = 26402155368359 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26402155630583) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9876358 + ... + 12261596.

It is an arithmetic number, because the mean of its divisors is an integer number (2211356004000).

Almost surely, 2^{26402155630503} is an apocalyptic number.

26402155630503 is a deficient number, since it is larger than the sum of its proper divisors (8979540433497).

26402155630503 is a wasteful number, since it uses less digits than its factorization.

26402155630503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2403982.

The product of its (nonzero) digits is 648000, while the sum is 42.

The spelling of 26402155630503 in words is "twenty-six trillion, four hundred two billion, one hundred fifty-five million, six hundred thirty thousand, five hundred three".