1988342698494 has 32 divisors (see below), whose sum is σ = 4014135273600. Its totient is φ = 656540132192.

The previous prime is 1988342698439. The next prime is 1988342698501. The reversal of 1988342698494 is 4948962438891.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9623437 + ... + 9827879.

It is an arithmetic number, because the mean of its divisors is an integer number (125441727300).

Almost surely, 2^{1988342698494} is an apocalyptic number.

1988342698494 is an abundant number, since it is smaller than the sum of its proper divisors (2025792575106).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1988342698494 is a wasteful number, since it uses less digits than its factorization.

1988342698494 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219704.

The product of its digits is 859963392, while the sum is 75.

The spelling of 1988342698494 in words is "one trillion, nine hundred eighty-eight billion, three hundred forty-two million, six hundred ninety-eight thousand, four hundred ninety-four".