57491482397 has 2 divisors, whose sum is σ = 57491482398. Its totient is φ = 57491482396.

The previous prime is 57491482381. The next prime is 57491482423. The reversal of 57491482397 is 79328419475.

57491482397 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 56959072921 + 532409476 = 238661^2 + 23074^2 .

It is a cyclic number.

It is not a de Polignac number, because 57491482397 - 2⁴ = 57491482381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (57491482327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28745741198 + 28745741199.

It is an arithmetic number, because the mean of its divisors is an integer number (28745741199).

Almost surely, 2^57491482397 is an apocalyptic number.

It is an amenable number.

57491482397 is a deficient number, since it is larger than the sum of its proper divisors (1).

57491482397 is an equidigital number, since it uses as much as digits as its factorization.

57491482397 is an evil number, because the sum of its binary digits is even.

The product of its digits is 15240960, while the sum is 59.

The spelling of 57491482397 in words is "fifty-seven billion, four hundred ninety-one million, four hundred eighty-two thousand, three hundred ninety-seven".