57279126839447 has 2 divisors, whose sum is σ = 57279126839448. Its totient is φ = 57279126839446.

The previous prime is 57279126839413. The next prime is 57279126839483. The reversal of 57279126839447 is 74493862197275.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 57279126839447 - 2¹⁴ = 57279126823063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57279126839747) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28639563419723 + 28639563419724.

It is an arithmetic number, because the mean of its divisors is an integer number (28639563419724).

Almost surely, 2^{57279126839447} is an apocalyptic number.

57279126839447 is a deficient number, since it is larger than the sum of its proper divisors (1).

57279126839447 is an equidigital number, since it uses as much as digits as its factorization.

57279126839447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1280240640, while the sum is 74.

The spelling of 57279126839447 in words is "fifty-seven trillion, two hundred seventy-nine billion, one hundred twenty-six million, eight hundred thirty-nine thousand, four hundred forty-seven".