26878342003 has 16 divisors (see below), whose sum is σ = 27726922080. Its totient is φ = 26040801024.

The previous prime is 26878341953. The next prime is 26878342009. The reversal of 26878342003 is 30024387862.

It is a cyclic number.

It is not a de Polignac number, because 26878342003 - 2³³ = 18288407411 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (26878342009) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2690125 + ... + 2700097.

It is an arithmetic number, because the mean of its divisors is an integer number (1732932630).

Almost surely, 2^26878342003 is an apocalyptic number.

26878342003 is a deficient number, since it is larger than the sum of its proper divisors (848580077).

26878342003 is a wasteful number, since it uses less digits than its factorization.

26878342003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10518.

The product of its (nonzero) digits is 387072, while the sum is 43.

The spelling of 26878342003 in words is "twenty-six billion, eight hundred seventy-eight million, three hundred forty-two thousand, three".