983949891956 has 24 divisors (see below), whose sum is σ = 1727646264960. Its totient is φ = 490336906752.

The previous prime is 983949891931. The next prime is 983949891983. The reversal of 983949891956 is 659198949389.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27782996 + ... + 27818388.

It is an arithmetic number, because the mean of its divisors is an integer number (71985261040).

Almost surely, 2^983949891956 is an apocalyptic number.

It is an amenable number.

983949891956 is a deficient number, since it is larger than the sum of its proper divisors (743696373004).

983949891956 is a wasteful number, since it uses less digits than its factorization.

983949891956 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58343 (or 58341 counting only the distinct ones).

The product of its digits is 1360488960, while the sum is 80.

The spelling of 983949891956 in words is "nine hundred eighty-three billion, nine hundred forty-nine million, eight hundred ninety-one thousand, nine hundred fifty-six".