1428755217641 has 2 divisors, whose sum is σ = 1428755217642. Its totient is φ = 1428755217640.

The previous prime is 1428755217629. The next prime is 1428755217653. The reversal of 1428755217641 is 1467125578241.

It is a happy number.

It is a balanced prime because it is at equal distance from previous prime (1428755217629) and next prime (1428755217653).

It can be written as a sum of positive squares in only one way, i.e., 1393249729600 + 35505488041 = 1180360^2 + 188429^2 .

It is a cyclic number.

It is not a de Polignac number, because 1428755217641 - 2¹⁸ = 1428754955497 is a prime.

It is not a weakly prime, because it can be changed into another prime (1428755117641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 714377608820 + 714377608821.

It is an arithmetic number, because the mean of its divisors is an integer number (714377608821).

Almost surely, 2^{1428755217641} is an apocalyptic number.

It is an amenable number.

1428755217641 is a deficient number, since it is larger than the sum of its proper divisors (1).

1428755217641 is an equidigital number, since it uses as much as digits as its factorization.

1428755217641 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3763200, while the sum is 53.

The spelling of 1428755217641 in words is "one trillion, four hundred twenty-eight billion, seven hundred fifty-five million, two hundred seventeen thousand, six hundred forty-one".