397495177753 has 2 divisors, whose sum is σ = 397495177754. Its totient is φ = 397495177752.

The previous prime is 397495177727. The next prime is 397495177787. The reversal of 397495177753 is 357771594793.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 267897337744 + 129597840009 = 517588^2 + 359997^2 .

It is a cyclic number.

It is not a de Polignac number, because 397495177753 - 2¹⁷ = 397495046681 is a prime.

It is a super-2 number, since 2×397495177753² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (397495177553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198747588876 + 198747588877.

It is an arithmetic number, because the mean of its divisors is an integer number (198747588877).

Almost surely, 2^397495177753 is an apocalyptic number.

It is an amenable number.

397495177753 is a deficient number, since it is larger than the sum of its proper divisors (1).

397495177753 is an equidigital number, since it uses as much as digits as its factorization.

397495177753 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 175032900, while the sum is 67.

The spelling of 397495177753 in words is "three hundred ninety-seven billion, four hundred ninety-five million, one hundred seventy-seven thousand, seven hundred fifty-three".