994087998757 has 4 divisors (see below), whose sum is σ = 1136100570016. Its totient is φ = 852075427500.

The previous prime is 994087998697. The next prime is 994087998817. The reversal of 994087998757 is 757899780499.

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 an interprime number because it is at equal distance from previous prime (994087998697) and next prime (994087998817).

It is a cyclic number.

It is not a de Polignac number, because 994087998757 - 2¹⁹ = 994087474469 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 (994087998857) 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, 71006285619 + ... + 71006285632.

It is an arithmetic number, because the mean of its divisors is an integer number (284025142504).

Almost surely, 2^994087998757 is an apocalyptic number.

It is an amenable number.

994087998757 is a deficient number, since it is larger than the sum of its proper divisors (142012571259).

994087998757 is a wasteful number, since it uses less digits than its factorization.

994087998757 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 142012571258.

The product of its (nonzero) digits is 2880541440, while the sum is 82.

The spelling of 994087998757 in words is "nine hundred ninety-four billion, eighty-seven million, nine hundred ninety-eight thousand, seven hundred fifty-seven".