396148595581457 has 2 divisors, whose sum is σ = 396148595581458. Its totient is φ = 396148595581456.

The previous prime is 396148595581429. The next prime is 396148595581493. The reversal of 396148595581457 is 754185595841693.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 371310971063761 + 24837624517696 = 19269431^2 + 4983736^2 .

It is a cyclic number.

It is not a de Polignac number, because 396148595581457 - 2¹⁸ = 396148595319313 is a prime.

It is not a weakly prime, because it can be changed into another prime (396148595581157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198074297790728 + 198074297790729.

It is an arithmetic number, because the mean of its divisors is an integer number (198074297790729).

Almost surely, 2^{396148595581457} is an apocalyptic number.

It is an amenable number.

396148595581457 is a deficient number, since it is larger than the sum of its proper divisors (1).

396148595581457 is an equidigital number, since it uses as much as digits as its factorization.

396148595581457 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6531840000, while the sum is 80.

The spelling of 396148595581457 in words is "three hundred ninety-six trillion, one hundred forty-eight billion, five hundred ninety-five million, five hundred eighty-one thousand, four hundred fifty-seven".