26989113403 has 16 divisors (see below), whose sum is σ = 31315011840. Its totient is φ = 22782555936.

The previous prime is 26989113383. The next prime is 26989113409. The reversal of 26989113403 is 30431198962.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-26989113403 is a prime.

It is not an unprimeable number, because it can be changed into a prime (26989113409) 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, 110908 + ... + 257446.

It is an arithmetic number, because the mean of its divisors is an integer number (1957188240).

Almost surely, 2^26989113403 is an apocalyptic number.

26989113403 is a deficient number, since it is larger than the sum of its proper divisors (4325898437).

26989113403 is a wasteful number, since it uses less digits than its factorization.

26989113403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146946.

The product of its (nonzero) digits is 279936, while the sum is 46.

The spelling of 26989113403 in words is "twenty-six billion, nine hundred eighty-nine million, one hundred thirteen thousand, four hundred three".