1986137354 has 16 divisors (see below), whose sum is σ = 3110208192. Its totient is φ = 949442208.

The previous prime is 1986137333. The next prime is 1986137359. The reversal of 1986137354 is 4537316891.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1986137299 and 1986137308.

It is not an unprimeable number, because it can be changed into a prime (1986137359) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 101057 + ... + 119099.

It is an arithmetic number, because the mean of its divisors is an integer number (194388012).

Almost surely, 2^1986137354 is an apocalyptic number.

1986137354 is a deficient number, since it is larger than the sum of its proper divisors (1124070838).

1986137354 is a wasteful number, since it uses less digits than its factorization.

1986137354 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20461.

The product of its digits is 544320, while the sum is 47.

The square root of 1986137354 is about 44566.1009512836. The cubic root of 1986137354 is about 1257.0033249936.

The spelling of 1986137354 in words is "one billion, nine hundred eighty-six million, one hundred thirty-seven thousand, three hundred fifty-four".