994900787871 has 8 divisors (see below), whose sum is σ = 1362386664624. Its totient is φ = 645341051520.

The previous prime is 994900787819. The next prime is 994900787891. The reversal of 994900787871 is 178787009499.

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

It is not a de Polignac number, because 994900787871 - 2¹⁸ = 994900525727 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 994900787796 and 994900787805.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (994900787891) 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, 4481534970 + ... + 4481535191.

It is an arithmetic number, because the mean of its divisors is an integer number (170298333078).

Almost surely, 2^994900787871 is an apocalyptic number.

994900787871 is a deficient number, since it is larger than the sum of its proper divisors (367485876753).

994900787871 is a wasteful number, since it uses less digits than its factorization.

994900787871 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8963070201.

The product of its (nonzero) digits is 64012032, while the sum is 69.

The spelling of 994900787871 in words is "nine hundred ninety-four billion, nine hundred million, seven hundred eighty-seven thousand, eight hundred seventy-one".