26269734645 has 192 divisors, whose sum is σ = 60567306240. Its totient is φ = 10563696000.

The previous prime is 26269734643. The next prime is 26269734661. The reversal of 26269734645 is 54643796262.

26269734645 is a `hidden beast` number, since 2 + 626 + 9 + 7 + 3 + 4 + 6 + 4 + 5 = 666.

It is not a de Polignac number, because 26269734645 - 2¹ = 26269734643 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 26269734591 and 26269734600.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (26269734643) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 3540990 + ... + 3548400.

It is an arithmetic number, because the mean of its divisors is an integer number (315454720).

Almost surely, 2^26269734645 is an apocalyptic number.

It is an amenable number.

26269734645 is an abundant number, since it is smaller than the sum of its proper divisors (34297571595).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

26269734645 is a wasteful number, since it uses less digits than its factorization.

26269734645 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7485 (or 7468 counting only the distinct ones).

The product of its digits is 13063680, while the sum is 54.

The spelling of 26269734645 in words is "twenty-six billion, two hundred sixty-nine million, seven hundred thirty-four thousand, six hundred forty-five".