1948069454437 has 2 divisors, whose sum is σ = 1948069454438. Its totient is φ = 1948069454436.

The previous prime is 1948069454423. The next prime is 1948069454503. The reversal of 1948069454437 is 7344549608491.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1807709829121 + 140359625316 = 1344511^2 + 374646^2 .

It is a cyclic number.

It is not a de Polignac number, because 1948069454437 - 2¹⁹ = 1948068930149 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1948069454537) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974034727218 + 974034727219.

It is an arithmetic number, because the mean of its divisors is an integer number (974034727219).

Almost surely, 2^{1948069454437} is an apocalyptic number.

It is an amenable number.

1948069454437 is a deficient number, since it is larger than the sum of its proper divisors (1).

1948069454437 is an equidigital number, since it uses as much as digits as its factorization.

1948069454437 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 104509440, while the sum is 64.

The spelling of 1948069454437 in words is "one trillion, nine hundred forty-eight billion, sixty-nine million, four hundred fifty-four thousand, four hundred thirty-seven".