1916370356880 has 480 divisors, whose sum is σ = 7024800384000. Its totient is φ = 430814039040.

The previous prime is 1916370356861. The next prime is 1916370356897. The reversal of 1916370356880 is 886530736191.

It is a self number, because there is not a number n which added to its sum of digits gives 1916370356880.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 639001621 + ... + 639004619.

It is an arithmetic number, because the mean of its divisors is an integer number (14635000800).

Almost surely, 2^{1916370356880} is an apocalyptic number.

1916370356880 is a gapful number since it is divisible by the number (10) 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 1916370356880, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3512400192000).

1916370356880 is an abundant number, since it is smaller than the sum of its proper divisors (5108430027120).

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

1916370356880 is a wasteful number, since it uses less digits than its factorization.

1916370356880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3907 (or 3894 counting only the distinct ones).

The product of its (nonzero) digits is 6531840, while the sum is 57.

The spelling of 1916370356880 in words is "one trillion, nine hundred sixteen billion, three hundred seventy million, three hundred fifty-six thousand, eight hundred eighty".