1699096981998 has 128 divisors (see below), whose sum is σ = 4152618150912. Its totient is φ = 457932220416.

The previous prime is 1699096981973. The next prime is 1699096982057. The reversal of 1699096981998 is 8991896909961.

It is a self number, because there is not a number n which added to its sum of digits gives 1699096981998.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 375565 + ... + 1881287.

It is an arithmetic number, because the mean of its divisors is an integer number (32442329304).

Almost surely, 2^{1699096981998} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1699096981998, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2076309075456).

1699096981998 is an abundant number, since it is smaller than the sum of its proper divisors (2453521168914).

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

1699096981998 is a wasteful number, since it uses less digits than its factorization.

1699096981998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1505818.

The product of its (nonzero) digits is 1224440064, while the sum is 84.

The spelling of 1699096981998 in words is "one trillion, six hundred ninety-nine billion, ninety-six million, nine hundred eighty-one thousand, nine hundred ninety-eight".