1920075780002 has 4 divisors (see below), whose sum is σ = 2880113670006. Its totient is φ = 960037890000.

The previous prime is 1920075779971. The next prime is 1920075780047. The reversal of 1920075780002 is 2000875700291.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 971090022721 + 948985757281 = 985439^2 + 974159^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 480018944999 + ... + 480018945002.

Almost surely, 2^{1920075780002} is an apocalyptic number.

1920075780002 is a deficient number, since it is larger than the sum of its proper divisors (960037890004).

1920075780002 is an equidigital number, since it uses as much as digits as its factorization.

1920075780002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 960037890003.

The product of its (nonzero) digits is 70560, while the sum is 41.

The spelling of 1920075780002 in words is "one trillion, nine hundred twenty billion, seventy-five million, seven hundred eighty thousand, two".