54618812639 has 2 divisors, whose sum is σ = 54618812640. Its totient is φ = 54618812638.

The previous prime is 54618812539. The next prime is 54618812681. The reversal of 54618812639 is 93621881645.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 54618812639 - 2³² = 50323845343 is a prime.

It is a super-3 number, since 3×54618812639³ (a number of 33 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54618812539) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27309406319 + 27309406320.

It is an arithmetic number, because the mean of its divisors is an integer number (27309406320).

Almost surely, 2^54618812639 is an apocalyptic number.

54618812639 is a deficient number, since it is larger than the sum of its proper divisors (1).

54618812639 is an equidigital number, since it uses as much as digits as its factorization.

54618812639 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2488320, while the sum is 53.

The spelling of 54618812639 in words is "fifty-four billion, six hundred eighteen million, eight hundred twelve thousand, six hundred thirty-nine".