199174948380 has 480 divisors, whose sum is σ = 669055464000. Its totient is φ = 49458843648.

The previous prime is 199174948369. The next prime is 199174948409. The reversal of 199174948380 is 83849471991.

199174948380 is a `hidden beast` number, since 1 + 9 + 9 + 1 + 74 + 9 + 483 + 80 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 628311982 + ... + 628312298.

It is an arithmetic number, because the mean of its divisors is an integer number (1393865550).

Almost surely, 2^199174948380 is an apocalyptic number.

199174948380 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 199174948380, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (334527732000).

199174948380 is an abundant number, since it is smaller than the sum of its proper divisors (469880515620).

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

199174948380 is a wasteful number, since it uses less digits than its factorization.

199174948380 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 643 (or 632 counting only the distinct ones).

The product of its (nonzero) digits is 15676416, while the sum is 63.

The spelling of 199174948380 in words is "one hundred ninety-nine billion, one hundred seventy-four million, nine hundred forty-eight thousand, three hundred eighty".