2074945984978 has 12 divisors (see below), whose sum is σ = 3188351678778. Its totient is φ = 1012162410240.

The previous prime is 2074945984901. The next prime is 2074945985033. The reversal of 2074945984978 is 8794895494702.

It can be written as a sum of positive squares in 3 ways, for example, as 1965247908129 + 109698076849 = 1401873^2 + 331207^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12964450 + ... + 13123522.

Almost surely, 2^{2074945984978} is an apocalyptic number.

2074945984978 is a deficient number, since it is larger than the sum of its proper divisors (1113405693800).

2074945984978 is an frugal number, since it uses more digits than its factorization.

2074945984978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 318189 (or 159116 counting only the distinct ones).

The product of its (nonzero) digits is 1463132160, while the sum is 76.

The spelling of 2074945984978 in words is "two trillion, seventy-four billion, nine hundred forty-five million, nine hundred eighty-four thousand, nine hundred seventy-eight".