2994944917840 has 20 divisors (see below), whose sum is σ = 6963246934164. Its totient is φ = 1197977967104.

The previous prime is 2994944917831. The next prime is 2994944917919. The reversal of 2994944917840 is 487194494992.

It can be written as a sum of positive squares in 2 ways, for example, as 2066026767424 + 928918150416 = 1437368^2 + 963804^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 2994944917840.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18718405657 + ... + 18718405816.

Almost surely, 2^{2994944917840} is an apocalyptic number.

2994944917840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

2994944917840 is an abundant number, since it is smaller than the sum of its proper divisors (3968302016324).

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

2994944917840 is a wasteful number, since it uses less digits than its factorization.

2994944917840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37436811486 (or 37436811480 counting only the distinct ones).

The product of its (nonzero) digits is 188116992, while the sum is 70.

The spelling of 2994944917840 in words is "two trillion, nine hundred ninety-four billion, nine hundred forty-four million, nine hundred seventeen thousand, eight hundred forty".