27726867465 has 24 divisors (see below), whose sum is σ = 48762626304. Its totient is φ = 13443328800.

The previous prime is 27726867463. The next prime is 27726867499. The reversal of 27726867465 is 56476862772.

It is a happy number.

It is not a de Polignac number, because 27726867465 - 2¹ = 27726867463 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 27726867399 and 27726867408.

It is not an unprimeable number, because it can be changed into a prime (27726867463) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7636441 + ... + 7640070.

It is an arithmetic number, because the mean of its divisors is an integer number (2031776096).

Almost surely, 2^27726867465 is an apocalyptic number.

It is an amenable number.

27726867465 is a deficient number, since it is larger than the sum of its proper divisors (21035758839).

27726867465 is a wasteful number, since it uses less digits than its factorization.

27726867465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15276541 (or 15276530 counting only the distinct ones).

The product of its digits is 47416320, while the sum is 60.

The spelling of 27726867465 in words is "twenty-seven billion, seven hundred twenty-six million, eight hundred sixty-seven thousand, four hundred sixty-five".