1994618776 has 16 divisors (see below), whose sum is σ = 3740448240. Its totient is φ = 997165920.

The previous prime is 1994618767. The next prime is 1994618777. The reversal of 1994618776 is 6778164991.

It is a self number, because there is not a number n which added to its sum of digits gives 1994618776.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1994618777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 62230 + ... + 88666.

It is an arithmetic number, because the mean of its divisors is an integer number (233778015).

Almost surely, 2^1994618776 is an apocalyptic number.

It is an amenable number.

1994618776 is a deficient number, since it is larger than the sum of its proper divisors (1745829464).

1994618776 is a wasteful number, since it uses less digits than its factorization.

1994618776 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35874 (or 35870 counting only the distinct ones).

The product of its digits is 4572288, while the sum is 58.

The square root of 1994618776 is about 44661.1551126927. The cubic root of 1994618776 is about 1258.7900486938.

The spelling of 1994618776 in words is "one billion, nine hundred ninety-four million, six hundred eighteen thousand, seven hundred seventy-six".