199439357290000 has 75 divisors (see below), whose sum is σ = 482866047109083. Its totient is φ = 79775178024000.

The previous prime is 199439357289983. The next prime is 199439357290057. The reversal of 199439357290000 is 92753934991.

The square root of 199439357290000 is 14122300.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in 2 ways, for example, as 15636045611536 + 183803311678464 = 3954244^2 + 13557408^2 .

It is a super-2 number, since 2×199439357290000² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 14 ways as a sum of consecutive naturals, for example, 1412159389 + ... + 1412300611.

Almost surely, 2^{199439357290000} is an apocalyptic number.

199439357290000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

199439357290000 is the 14122300-th square number.

It is an amenable number.

199439357290000 is an abundant number, since it is smaller than the sum of its proper divisors (283426689819083).

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

199439357290000 is an frugal number, since it uses more digits than its factorization.

199439357290000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282474 (or 141230 counting only the distinct ones).

The product of its (nonzero) digits is 16533720, while the sum is 61.

The spelling of 199439357290000 in words is "one hundred ninety-nine trillion, four hundred thirty-nine billion, three hundred fifty-seven million, two hundred ninety thousand".