1948986276161 has 4 divisors (see below), whose sum is σ = 1950650655024. Its totient is φ = 1947321897300.

The previous prime is 1948986276143. The next prime is 1948986276229. The reversal of 1948986276161 is 1616726898491.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1948986276161 - 2¹⁴ = 1948986259777 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1948986276091 and 1948986276100.

It is not an unprimeable number, because it can be changed into a prime (1948986276131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 832187675 + ... + 832190016.

It is an arithmetic number, because the mean of its divisors is an integer number (487662663756).

Almost surely, 2^{1948986276161} is an apocalyptic number.

It is an amenable number.

1948986276161 is a deficient number, since it is larger than the sum of its proper divisors (1664378863).

1948986276161 is a wasteful number, since it uses less digits than its factorization.

1948986276161 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1664378862.

The product of its digits is 62705664, while the sum is 68.

The spelling of 1948986276161 in words is "one trillion, nine hundred forty-eight billion, nine hundred eighty-six million, two hundred seventy-six thousand, one hundred sixty-one".