994989767989499 has 8 divisors (see below), whose sum is σ = 1011302201324592. Its totient is φ = 978677370966240.

The previous prime is 994989767989489. The next prime is 994989767989519.

994989767989499 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 994989767989499 - 2¹² = 994989767985403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (994989767989489) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 49217492 + ... + 66425454.

It is an arithmetic number, because the mean of its divisors is an integer number (126412775165574).

Almost surely, 2^{994989767989499} is an apocalyptic number.

994989767989499 is a deficient number, since it is larger than the sum of its proper divisors (16312433335093).

994989767989499 is a wasteful number, since it uses less digits than its factorization.

994989767989499 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18155917.

The product of its digits is 12959473637376, while the sum is 116.

The spelling of 994989767989499 in words is "nine hundred ninety-four trillion, nine hundred eighty-nine billion, seven hundred sixty-seven million, nine hundred eighty-nine thousand, four hundred ninety-nine".