1988679471094 has 4 divisors (see below), whose sum is σ = 2983019206644. Its totient is φ = 994339735546.

The previous prime is 1988679470969. The next prime is 1988679471101. The reversal of 1988679471094 is 4901749768891.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 497169867772 + ... + 497169867775.

It is an arithmetic number, because the mean of its divisors is an integer number (745754801661).

Almost surely, 2^{1988679471094} is an apocalyptic number.

1988679471094 is a deficient number, since it is larger than the sum of its proper divisors (994339735550).

1988679471094 is an equidigital number, since it uses as much as digits as its factorization.

1988679471094 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994339735549.

The product of its (nonzero) digits is 219469824, while the sum is 73.

The spelling of 1988679471094 in words is "one trillion, nine hundred eighty-eight billion, six hundred seventy-nine million, four hundred seventy-one thousand, ninety-four".