1948659361 has 16 divisors (see below), whose sum is σ = 2262859200. Its totient is φ = 1659398400.

The previous prime is 1948659359. The next prime is 1948659389. The reversal of 1948659361 is 1639568491.

It is not a de Polignac number, because 1948659361 - 2¹ = 1948659359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1948659299 and 1948659308.

It is not an unprimeable number, because it can be changed into a prime (1948659301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 33780 + ... + 70981.

It is an arithmetic number, because the mean of its divisors is an integer number (141428700).

Almost surely, 2^1948659361 is an apocalyptic number.

1948659361 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1948659361 is a deficient number, since it is larger than the sum of its proper divisors (314199839).

1948659361 is a wasteful number, since it uses less digits than its factorization.

1948659361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104880.

The product of its digits is 1399680, while the sum is 52.

The square root of 1948659361 is about 44143.6219741878. The cubic root of 1948659361 is about 1249.0466033594.

The spelling of 1948659361 in words is "one billion, nine hundred forty-eight million, six hundred fifty-nine thousand, three hundred sixty-one".