27726488451 has 24 divisors (see below), whose sum is σ = 41195421696. Its totient is φ = 17959883760.

The previous prime is 27726488407. The next prime is 27726488513. The reversal of 27726488451 is 15488462772.

It is not a de Polignac number, because 27726488451 - 2⁷ = 27726488323 is a prime.

It is not an unprimeable number, because it can be changed into a prime (27726488401) 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, 113635 + ... + 261468.

It is an arithmetic number, because the mean of its divisors is an integer number (1716475904).

Almost surely, 2^27726488451 is an apocalyptic number.

27726488451 is a deficient number, since it is larger than the sum of its proper divisors (13468933245).

27726488451 is a wasteful number, since it uses less digits than its factorization.

27726488451 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 375343 (or 375340 counting only the distinct ones).

The product of its digits is 6021120, while the sum is 54.

The spelling of 27726488451 in words is "twenty-seven billion, seven hundred twenty-six million, four hundred eighty-eight thousand, four hundred fifty-one".