26609648653 has 16 divisors (see below), whose sum is σ = 31680056320. Its totient is φ = 21870000000.

The previous prime is 26609648651. The next prime is 26609648671. The reversal of 26609648653 is 35684690662.

It is a cyclic number.

It is not a de Polignac number, because 26609648653 - 2¹ = 26609648651 is a prime.

It is a super-2 number, since 2×26609648653² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 26609648594 and 26609648603.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26609648651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 538848 + ... + 586153.

It is an arithmetic number, because the mean of its divisors is an integer number (1980003520).

Almost surely, 2^26609648653 is an apocalyptic number.

It is an amenable number.

26609648653 is a deficient number, since it is larger than the sum of its proper divisors (5070407667).

26609648653 is a wasteful number, since it uses less digits than its factorization.

26609648653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1125148.

The product of its (nonzero) digits is 11197440, while the sum is 55.

The spelling of 26609648653 in words is "twenty-six billion, six hundred nine million, six hundred forty-eight thousand, six hundred fifty-three".