1916040097920 has 256 divisors, whose sum is σ = 6923344982400. Its totient is φ = 446817337344.

The previous prime is 1916040097919. The next prime is 1916040097957. The reversal of 1916040097920 is 297900406191.

It is a Harshad number since it is a multiple of its sum of digits (48).

It is a self number, because there is not a number n which added to its sum of digits gives 1916040097920.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1545877 + ... + 2494356.

Almost surely, 2^{1916040097920} is an apocalyptic number.

1916040097920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1916040097920 is an abundant number, since it is smaller than the sum of its proper divisors (5007304884480).

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

1916040097920 is a wasteful number, since it uses less digits than its factorization.

1916040097920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4040287 (or 4040275 counting only the distinct ones).

The product of its (nonzero) digits is 244944, while the sum is 48.

The spelling of 1916040097920 in words is "one trillion, nine hundred sixteen billion, forty million, ninety-seven thousand, nine hundred twenty".