26304520072 has 8 divisors (see below), whose sum is σ = 49320975150. Its totient is φ = 13152260032.

The previous prime is 26304519971. The next prime is 26304520079. The reversal of 26304520072 is 27002540362.

It can be written as a sum of positive squares in only one way, i.e., 22322152836 + 3982367236 = 149406^2 + 63106^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is not an unprimeable number, because it can be changed into a prime (26304520079) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1644032497 + ... + 1644032512.

Almost surely, 2^26304520072 is an apocalyptic number.

It is an amenable number.

26304520072 is a deficient number, since it is larger than the sum of its proper divisors (23016455078).

26304520072 is a wasteful number, since it uses less digits than its factorization.

26304520072 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3288065015 (or 3288065011 counting only the distinct ones).

The product of its (nonzero) digits is 20160, while the sum is 31.

The spelling of 26304520072 in words is "twenty-six billion, three hundred four million, five hundred twenty thousand, seventy-two".