199884629145054 has 16 divisors (see below), whose sum is σ = 456879152331648. Its totient is φ = 57109894041432.

The previous prime is 199884629145031. The next prime is 199884629145059. The reversal of 199884629145054 is 450541926488991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (199884629145059) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2379578918352 + ... + 2379578918435.

It is an arithmetic number, because the mean of its divisors is an integer number (28554947020728).

Almost surely, 2^{199884629145054} is an apocalyptic number.

199884629145054 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

199884629145054 is an abundant number, since it is smaller than the sum of its proper divisors (256994523186594).

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

199884629145054 is a wasteful number, since it uses less digits than its factorization.

199884629145054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4759157836799.

The product of its (nonzero) digits is 895795200, while the sum is 75.

The spelling of 199884629145054 in words is "one hundred ninety-nine trillion, eight hundred eighty-four billion, six hundred twenty-nine million, one hundred forty-five thousand, fifty-four".