397074507451 has 2 divisors, whose sum is σ = 397074507452. Its totient is φ = 397074507450.

The previous prime is 397074507419. The next prime is 397074507469. The reversal of 397074507451 is 154705470793.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (154705470793) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 397074507451 - 2⁵ = 397074507419 is a prime.

It is not a weakly prime, because it can be changed into another prime (397074501451) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 198537253725 + 198537253726.

It is an arithmetic number, because the mean of its divisors is an integer number (198537253726).

Almost surely, 2^397074507451 is an apocalyptic number.

397074507451 is a deficient number, since it is larger than the sum of its proper divisors (1).

397074507451 is an equidigital number, since it uses as much as digits as its factorization.

397074507451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3704400, while the sum is 52.

The spelling of 397074507451 in words is "three hundred ninety-seven billion, seventy-four million, five hundred seven thousand, four hundred fifty-one".