54776726539 has 2 divisors, whose sum is σ = 54776726540. Its totient is φ = 54776726538.

The previous prime is 54776726519. The next prime is 54776726573. The reversal of 54776726539 is 93562767745.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54776726539 - 2⁵ = 54776726507 is a prime.

It is not a weakly prime, because it can be changed into another prime (54776726509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27388363269 + 27388363270.

It is an arithmetic number, because the mean of its divisors is an integer number (27388363270).

Almost surely, 2^54776726539 is an apocalyptic number.

54776726539 is a deficient number, since it is larger than the sum of its proper divisors (1).

54776726539 is an equidigital number, since it uses as much as digits as its factorization.

54776726539 is an evil number, because the sum of its binary digits is even.

The product of its digits is 66679200, while the sum is 61.

The spelling of 54776726539 in words is "fifty-four billion, seven hundred seventy-six million, seven hundred twenty-six thousand, five hundred thirty-nine".