994548794873 has 4 divisors (see below), whose sum is σ = 1037790046848. Its totient is φ = 951307542900.

The previous prime is 994548794867. The next prime is 994548794881. The reversal of 994548794873 is 378497845499.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 994548794873 - 2¹² = 994548790777 is a prime.

It is a super-2 number, since 2×994548794873² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 994548794794 and 994548794803.

It is not an unprimeable number, because it can be changed into a prime (994548794843) 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, 21620625953 + ... + 21620625998.

It is an arithmetic number, because the mean of its divisors is an integer number (259447511712).

Almost surely, 2^994548794873 is an apocalyptic number.

It is an amenable number.

994548794873 is a deficient number, since it is larger than the sum of its proper divisors (43241251975).

994548794873 is a wasteful number, since it uses less digits than its factorization.

994548794873 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43241251974.

The product of its digits is 2194698240, while the sum is 77.

The spelling of 994548794873 in words is "nine hundred ninety-four billion, five hundred forty-eight million, seven hundred ninety-four thousand, eight hundred seventy-three".