1900946047453 has 2 divisors, whose sum is σ = 1900946047454. Its totient is φ = 1900946047452.

The previous prime is 1900946047433. The next prime is 1900946047457. The reversal of 1900946047453 is 3547406490091.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1601039763684 + 299906283769 = 1265322^2 + 547637^2 .

It is an emirp because it is prime and its reverse (3547406490091) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1900946047453 - 2⁵ = 1900946047421 is a prime.

It is a super-2 number, since 2×1900946047453² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1900946047453.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1900946047457) 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, 950473023726 + 950473023727.

It is an arithmetic number, because the mean of its divisors is an integer number (950473023727).

Almost surely, 2^{1900946047453} is an apocalyptic number.

It is an amenable number.

1900946047453 is a deficient number, since it is larger than the sum of its proper divisors (1).

1900946047453 is an equidigital number, since it uses as much as digits as its factorization.

1900946047453 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 1900946047453 in words is "one trillion, nine hundred billion, nine hundred forty-six million, forty-seven thousand, four hundred fifty-three".