1899192454141 has 2 divisors, whose sum is σ = 1899192454142. Its totient is φ = 1899192454140.

The previous prime is 1899192454123. The next prime is 1899192454157. The reversal of 1899192454141 is 1414542919981.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1855191098916 + 44001355225 = 1362054^2 + 209765^2 .

It is an emirp because it is prime and its reverse (1414542919981) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1899192454141 - 2⁵ = 1899192454109 is a prime.

It is a super-2 number, since 2×1899192454141² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1899192454171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 949596227070 + 949596227071.

It is an arithmetic number, because the mean of its divisors is an integer number (949596227071).

Almost surely, 2^{1899192454141} is an apocalyptic number.

It is an amenable number.

1899192454141 is a deficient number, since it is larger than the sum of its proper divisors (1).

1899192454141 is an equidigital number, since it uses as much as digits as its factorization.

1899192454141 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3732480, while the sum is 58.

The spelling of 1899192454141 in words is "one trillion, eight hundred ninety-nine billion, one hundred ninety-two million, four hundred fifty-four thousand, one hundred forty-one".