1351924378433 has 2 divisors, whose sum is σ = 1351924378434. Its totient is φ = 1351924378432.

The previous prime is 1351924378393. The next prime is 1351924378439. The reversal of 1351924378433 is 3348734291531.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1345583760049 + 6340618384 = 1159993^2 + 79628^2 .

It is a cyclic number.

It is not a de Polignac number, because 1351924378433 - 2⁸ = 1351924378177 is a prime.

It is not a weakly prime, because it can be changed into another prime (1351924378439) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 675962189216 + 675962189217.

It is an arithmetic number, because the mean of its divisors is an integer number (675962189217).

Almost surely, 2^{1351924378433} is an apocalyptic number.

It is an amenable number.

1351924378433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1351924378433 is an equidigital number, since it uses as much as digits as its factorization.

1351924378433 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 6531840, while the sum is 53.

The spelling of 1351924378433 in words is "one trillion, three hundred fifty-one billion, nine hundred twenty-four million, three hundred seventy-eight thousand, four hundred thirty-three".