57487278439 has 2 divisors, whose sum is σ = 57487278440. Its totient is φ = 57487278438.

The previous prime is 57487278383. The next prime is 57487278481. The reversal of 57487278439 is 93487278475.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57487278439 - 2⁷ = 57487278311 is a prime.

It is a super-2 number, since 2×57487278439² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57487278239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28743639219 + 28743639220.

It is an arithmetic number, because the mean of its divisors is an integer number (28743639220).

Almost surely, 2^57487278439 is an apocalyptic number.

57487278439 is a deficient number, since it is larger than the sum of its proper divisors (1).

57487278439 is an equidigital number, since it uses as much as digits as its factorization.

57487278439 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 94832640, while the sum is 64.

The spelling of 57487278439 in words is "fifty-seven billion, four hundred eighty-seven million, two hundred seventy-eight thousand, four hundred thirty-nine".