1916877312 has 480 divisors, whose sum is σ = 6863560704. Its totient is φ = 522547200.

The previous prime is 1916877311. The next prime is 1916877371. The reversal of 1916877312 is 2137786191.

It is a nude number because it is divisible by every one of its digits.

It is not an unprimeable number, because it can be changed into a prime (1916877311) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 26998237 + ... + 26998307.

Almost surely, 2^1916877312 is an apocalyptic number.

1916877312 is a gapful number since it is divisible by the number (12) 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 1916877312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3431780352).

1916877312 is an abundant number, since it is smaller than the sum of its proper divisors (4946683392).

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

1916877312 is an frugal number, since it uses more digits than its factorization.

1916877312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142 (or 114 counting only the distinct ones).

The product of its digits is 127008, while the sum is 45.

The square root of 1916877312 is about 43782.1574616875. The cubic root of 1916877312 is about 1242.2188230279.

The spelling of 1916877312 in words is "one billion, nine hundred sixteen million, eight hundred seventy-seven thousand, three hundred twelve".