1916974658 has 16 divisors (see below), whose sum is σ = 2979588480. Its totient is φ = 924343056.

The previous prime is 1916974637. The next prime is 1916974663. The reversal of 1916974658 is 8564796191.

It is an unprimeable number.

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, 134285 + ... + 147872.

It is an arithmetic number, because the mean of its divisors is an integer number (186224280).

Almost surely, 2^1916974658 is an apocalyptic number.

1916974658 is a deficient number, since it is larger than the sum of its proper divisors (1062613822).

1916974658 is a wasteful number, since it uses less digits than its factorization.

1916974658 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 282281.

The product of its digits is 3265920, while the sum is 56.

The square root of 1916974658 is about 43783.2691561514. The cubic root of 1916974658 is about 1242.2398508015.

The spelling of 1916974658 in words is "one billion, nine hundred sixteen million, nine hundred seventy-four thousand, six hundred fifty-eight".