1916761608 has 96 divisors (see below), whose sum is σ = 5284319040. Its totient is φ = 627569280.

The previous prime is 1916761559. The next prime is 1916761783. The reversal of 1916761608 is 8061676191.

1916761608 is a `hidden beast` number, since 19 + 16 + 7 + 616 + 0 + 8 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 970510 + ... + 972482.

It is an arithmetic number, because the mean of its divisors is an integer number (55044990).

Almost surely, 2^1916761608 is an apocalyptic number.

1916761608 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1916761608, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2642159520).

1916761608 is an abundant number, since it is smaller than the sum of its proper divisors (3367557432).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1916761608 is a wasteful number, since it uses less digits than its factorization.

1916761608 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2219 (or 2212 counting only the distinct ones).

The product of its (nonzero) digits is 108864, while the sum is 45.

The square root of 1916761608 is about 43780.8360815551. The cubic root of 1916761608 is about 1242.1938288046.

The spelling of 1916761608 in words is "one billion, nine hundred sixteen million, seven hundred sixty-one thousand, six hundred eight".