54798490639 has 2 divisors, whose sum is σ = 54798490640. Its totient is φ = 54798490638.

The previous prime is 54798490627. The next prime is 54798490661. The reversal of 54798490639 is 93609489745.

54798490639 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 54798490639 - 2⁷ = 54798490511 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (54798490139) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 27399245319 + 27399245320.

It is an arithmetic number, because the mean of its divisors is an integer number (27399245320).

Almost surely, 2^54798490639 is an apocalyptic number.

54798490639 is a deficient number, since it is larger than the sum of its proper divisors (1).

54798490639 is an equidigital number, since it uses as much as digits as its factorization.

54798490639 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 58786560, while the sum is 64.

The spelling of 54798490639 in words is "fifty-four billion, seven hundred ninety-eight million, four hundred ninety thousand, six hundred thirty-nine".