1420319816720 has 80 divisors (see below), whose sum is σ = 3775394966400. Its totient is φ = 486785851392.

The previous prime is 1420319816677. The next prime is 1420319816723. The reversal of 1420319816720 is 276189130241.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (1420319816723) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 1041584 + ... + 1981296.

It is an arithmetic number, because the mean of its divisors is an integer number (47192437080).

Almost surely, 2^{1420319816720} is an apocalyptic number.

1420319816720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1420319816720 is an abundant number, since it is smaller than the sum of its proper divisors (2355075149680).

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

1420319816720 is a wasteful number, since it uses less digits than its factorization.

1420319816720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 942432 (or 942426 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 44.

The spelling of 1420319816720 in words is "one trillion, four hundred twenty billion, three hundred nineteen million, eight hundred sixteen thousand, seven hundred twenty".