1948042923401 has 2 divisors, whose sum is σ = 1948042923402. Its totient is φ = 1948042923400.

The previous prime is 1948042923341. The next prime is 1948042923403. The reversal of 1948042923401 is 1043292408491.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1856403525001 + 91639398400 = 1362499^2 + 302720^2 .

It is an emirp because it is prime and its reverse (1043292408491) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1948042923401 - 2³⁴ = 1930863054217 is a prime.

Together with 1948042923403, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1948042923403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 974021461700 + 974021461701.

It is an arithmetic number, because the mean of its divisors is an integer number (974021461701).

Almost surely, 2^{1948042923401} is an apocalyptic number.

It is an amenable number.

1948042923401 is a deficient number, since it is larger than the sum of its proper divisors (1).

1948042923401 is an equidigital number, since it uses as much as digits as its factorization.

1948042923401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 47.

The spelling of 1948042923401 in words is "one trillion, nine hundred forty-eight billion, forty-two million, nine hundred twenty-three thousand, four hundred one".