994780808741 has 4 divisors (see below), whose sum is σ = 994783207500. Its totient is φ = 994778409984.

The previous prime is 994780808731. The next prime is 994780808849. The reversal of 994780808741 is 147808087499.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 147808087499 = 267893 ⋅551743.

It can be written as a sum of positive squares in 2 ways, for example, as 179288730625 + 815492078116 = 423425^2 + 903046^2 .

It is a cyclic number.

It is not a de Polignac number, because 994780808741 - 2⁶ = 994780808677 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994780808731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 399506 + ... + 1466003.

It is an arithmetic number, because the mean of its divisors is an integer number (248695801875).

Almost surely, 2^994780808741 is an apocalyptic number.

It is an amenable number.

994780808741 is a deficient number, since it is larger than the sum of its proper divisors (2398759).

994780808741 is a wasteful number, since it uses less digits than its factorization.

994780808741 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2398758.

The product of its (nonzero) digits is 32514048, while the sum is 65.

The spelling of 994780808741 in words is "nine hundred ninety-four billion, seven hundred eighty million, eight hundred eight thousand, seven hundred forty-one".