7389161986 has 8 divisors (see below), whose sum is σ = 11092150080. Its totient is φ = 3691778628.

The previous prime is 7389161977. The next prime is 7389162017. The reversal of 7389161986 is 6891619837.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 7389161986.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1397886 + ... + 1403161.

It is an arithmetic number, because the mean of its divisors is an integer number (1386518760).

Almost surely, 2^7389161986 is an apocalyptic number.

7389161986 is a deficient number, since it is larger than the sum of its proper divisors (3702988094).

7389161986 is a wasteful number, since it uses less digits than its factorization.

7389161986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2802368.

The product of its digits is 3919104, while the sum is 58.

The square root of 7389161986 is about 85960.2349112658. The cubic root of 7389161986 is about 1947.7433448530.

The spelling of 7389161986 in words is "seven billion, three hundred eighty-nine million, one hundred sixty-one thousand, nine hundred eighty-six".