390553391441 has 2 divisors, whose sum is σ = 390553391442. Its totient is φ = 390553391440.

The previous prime is 390553391411. The next prime is 390553391461. The reversal of 390553391441 is 144193355093.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 370558300225 + 19995091216 = 608735^2 + 141404^2 .

It is an emirp because it is prime and its reverse (144193355093) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 390553391441 - 2⁶ = 390553391377 is a prime.

It is not a weakly prime, because it can be changed into another prime (390553391411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195276695720 + 195276695721.

It is an arithmetic number, because the mean of its divisors is an integer number (195276695721).

Almost surely, 2^390553391441 is an apocalyptic number.

It is an amenable number.

390553391441 is a deficient number, since it is larger than the sum of its proper divisors (1).

390553391441 is an equidigital number, since it uses as much as digits as its factorization.

390553391441 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 874800, while the sum is 47.

The spelling of 390553391441 in words is "three hundred ninety billion, five hundred fifty-three million, three hundred ninety-one thousand, four hundred forty-one".