23278711603 has 24 divisors (see below), whose sum is σ = 27706051104. Its totient is φ = 19495728000.

The previous prime is 23278711591. The next prime is 23278711637. The reversal of 23278711603 is 30611787232.

It is a happy number.

It is not a de Polignac number, because 23278711603 - 2¹³ = 23278703411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23278711663) 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 23 ways as a sum of consecutive naturals, for example, 425551 + ... + 477127.

It is an arithmetic number, because the mean of its divisors is an integer number (1154418796).

Almost surely, 2^23278711603 is an apocalyptic number.

23278711603 is a deficient number, since it is larger than the sum of its proper divisors (4427339501).

23278711603 is a wasteful number, since it uses less digits than its factorization.

23278711603 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51803 (or 51796 counting only the distinct ones).

The product of its (nonzero) digits is 84672, while the sum is 40.

The spelling of 23278711603 in words is "twenty-three billion, two hundred seventy-eight million, seven hundred eleven thousand, six hundred three".