547849479157 has 2 divisors, whose sum is σ = 547849479158. Its totient is φ = 547849479156.

The previous prime is 547849479139. The next prime is 547849479211. The reversal of 547849479157 is 751974948745.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 513220363236 + 34629115921 = 716394^2 + 186089^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-547849479157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (547849479557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 273924739578 + 273924739579.

It is an arithmetic number, because the mean of its divisors is an integer number (273924739579).

Almost surely, 2^547849479157 is an apocalyptic number.

It is an amenable number.

547849479157 is a deficient number, since it is larger than the sum of its proper divisors (1).

547849479157 is an equidigital number, since it uses as much as digits as its factorization.

547849479157 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 355622400, while the sum is 70.

The spelling of 547849479157 in words is "five hundred forty-seven billion, eight hundred forty-nine million, four hundred seventy-nine thousand, one hundred fifty-seven".