57426357491 has 2 divisors, whose sum is σ = 57426357492. Its totient is φ = 57426357490.

The previous prime is 57426357379. The next prime is 57426357503. The reversal of 57426357491 is 19475362475.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 57426357491 - 2¹⁰ = 57426356467 is a prime.

It is a super-3 number, since 3×57426357491³ (a number of 33 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (57426357091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28713178745 + 28713178746.

It is an arithmetic number, because the mean of its divisors is an integer number (28713178746).

Almost surely, 2^57426357491 is an apocalyptic number.

57426357491 is a deficient number, since it is larger than the sum of its proper divisors (1).

57426357491 is an equidigital number, since it uses as much as digits as its factorization.

57426357491 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6350400, while the sum is 53.

The spelling of 57426357491 in words is "fifty-seven billion, four hundred twenty-six million, three hundred fifty-seven thousand, four hundred ninety-one".