1939198959 has 36 divisors (see below), whose sum is σ = 2991717456. Its totient is φ = 1210134528.

The previous prime is 1939198949. The next prime is 1939198973. The reversal of 1939198959 is 9598919391.

It is not a de Polignac number, because 1939198959 - 2¹³ = 1939190767 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1939198896 and 1939198905.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1939198909) by changing a digit.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 500062 + ... + 503924.

Almost surely, 2^1939198959 is an apocalyptic number.

1939198959 is a deficient number, since it is larger than the sum of its proper divisors (1052518497).

1939198959 is a wasteful number, since it uses less digits than its factorization.

1939198959 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4096 (or 4076 counting only the distinct ones).

The product of its digits is 7085880, while the sum is 63.

The square root of 1939198959 is about 44036.3368026906. The cubic root of 1939198959 is about 1247.0220222060.

The spelling of 1939198959 in words is "one billion, nine hundred thirty-nine million, one hundred ninety-eight thousand, nine hundred fifty-nine".