54174877817 has 2 divisors, whose sum is σ = 54174877818. Its totient is φ = 54174877816.

The previous prime is 54174877763. The next prime is 54174877853. The reversal of 54174877817 is 71877847145.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 33040696441 + 21134181376 = 181771^2 + 145376^2 .

It is a cyclic number.

It is not a de Polignac number, because 54174877817 - 2¹⁰ = 54174876793 is a prime.

It is not a weakly prime, because it can be changed into another prime (54174873817) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27087438908 + 27087438909.

It is an arithmetic number, because the mean of its divisors is an integer number (27087438909).

Almost surely, 2^54174877817 is an apocalyptic number.

It is an amenable number.

54174877817 is a deficient number, since it is larger than the sum of its proper divisors (1).

54174877817 is an equidigital number, since it uses as much as digits as its factorization.

54174877817 is an evil number, because the sum of its binary digits is even.

The product of its digits is 12293120, while the sum is 59.

The spelling of 54174877817 in words is "fifty-four billion, one hundred seventy-four million, eight hundred seventy-seven thousand, eight hundred seventeen".