1900008099198 has 96 divisors (see below), whose sum is σ = 4646742927840. Its totient is φ = 555791953920.

The previous prime is 1900008099029. The next prime is 1900008099229. The reversal of 1900008099198 is 8919908000091.

It is a super-2 number, since 2×1900008099198² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 30246190 + ... + 30308942.

It is an arithmetic number, because the mean of its divisors is an integer number (48403572165).

Almost surely, 2^{1900008099198} is an apocalyptic number.

1900008099198 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1900008099198, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2323371463920).

1900008099198 is an abundant number, since it is smaller than the sum of its proper divisors (2746734828642).

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

1900008099198 is a wasteful number, since it uses less digits than its factorization.

1900008099198 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68074 (or 68071 counting only the distinct ones).

The product of its (nonzero) digits is 419904, while the sum is 54.

The spelling of 1900008099198 in words is "one trillion, nine hundred billion, eight million, ninety-nine thousand, one hundred ninety-eight".