1872425944447 has 2 divisors, whose sum is σ = 1872425944448. Its totient is φ = 1872425944446.

The previous prime is 1872425944391. The next prime is 1872425944469. The reversal of 1872425944447 is 7444495242781.

It is a strong prime.

It is an emirp because it is prime and its reverse (7444495242781) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1872425944447 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1872425954447) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 936212972223 + 936212972224.

It is an arithmetic number, because the mean of its divisors is an integer number (936212972224).

Almost surely, 2^{1872425944447} is an apocalyptic number.

1872425944447 is a deficient number, since it is larger than the sum of its proper divisors (1).

1872425944447 is an equidigital number, since it uses as much as digits as its factorization.

1872425944447 is an evil number, because the sum of its binary digits is even.

The product of its digits is 72253440, while the sum is 61.

The spelling of 1872425944447 in words is "one trillion, eight hundred seventy-two billion, four hundred twenty-five million, nine hundred forty-four thousand, four hundred forty-seven".