57947426357 has 2 divisors, whose sum is σ = 57947426358. Its totient is φ = 57947426356.

The previous prime is 57947426321. The next prime is 57947426413. The reversal of 57947426357 is 75362474975.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 57127692196 + 819734161 = 239014^2 + 28631^2 .

It is a cyclic number.

It is not a de Polignac number, because 57947426357 - 2³² = 53652459061 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 57947426296 and 57947426305.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57947426557) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28973713178 + 28973713179.

It is an arithmetic number, because the mean of its divisors is an integer number (28973713179).

Almost surely, 2^57947426357 is an apocalyptic number.

It is an amenable number.

57947426357 is a deficient number, since it is larger than the sum of its proper divisors (1).

57947426357 is an equidigital number, since it uses as much as digits as its factorization.

57947426357 is an evil number, because the sum of its binary digits is even.

The product of its digits is 44452800, while the sum is 59.

The spelling of 57947426357 in words is "fifty-seven billion, nine hundred forty-seven million, four hundred twenty-six thousand, three hundred fifty-seven".