2999746544978 has 24 divisors (see below), whose sum is σ = 4602468297072. Its totient is φ = 1466340636744.

The previous prime is 2999746544969. The next prime is 2999746544983. The reversal of 2999746544978 is 8794456479992.

It is a junction number, because it is equal to n+sod(n) for n = 2999746544896 and 2999746544905.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3632825 + ... + 4381427.

It is an arithmetic number, because the mean of its divisors is an integer number (191769512378).

Almost surely, 2^{2999746544978} is an apocalyptic number.

2999746544978 is a deficient number, since it is larger than the sum of its proper divisors (1602721752094).

2999746544978 is an equidigital number, since it uses as much as digits as its factorization.

2999746544978 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 749606 (or 749559 counting only the distinct ones).

The product of its digits is 9876142080, while the sum is 83.

The spelling of 2999746544978 in words is "two trillion, nine hundred ninety-nine billion, seven hundred forty-six million, five hundred forty-four thousand, nine hundred seventy-eight".