54761827691 has 2 divisors, whose sum is σ = 54761827692. Its totient is φ = 54761827690.

The previous prime is 54761827663. The next prime is 54761827693. The reversal of 54761827691 is 19672816745.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54761827691 - 2³⁴ = 37581958507 is a prime.

It is a Sophie Germain prime.

Together with 54761827693, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (54761827693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27380913845 + 27380913846.

It is an arithmetic number, because the mean of its divisors is an integer number (27380913846).

Almost surely, 2^54761827691 is an apocalyptic number.

54761827691 is a deficient number, since it is larger than the sum of its proper divisors (1).

54761827691 is an equidigital number, since it uses as much as digits as its factorization.

54761827691 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5080320, while the sum is 56.

The spelling of 54761827691 in words is "fifty-four billion, seven hundred sixty-one million, eight hundred twenty-seven thousand, six hundred ninety-one".