19880449736334 has 128 divisors (see below), whose sum is σ = 43727952052224. Its totient is φ = 5975641056000.

The previous prime is 19880449736281. The next prime is 19880449736351. The reversal of 19880449736334 is 43363794408891.

It is a super-2 number, since 2×19880449736334² (a number of 27 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 63 ways as a sum of consecutive naturals, for example, 12219083229 + ... + 12219084855.

It is an arithmetic number, because the mean of its divisors is an integer number (341624625408).

Almost surely, 2^{19880449736334} is an apocalyptic number.

19880449736334 is an abundant number, since it is smaller than the sum of its proper divisors (23847502315890).

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

19880449736334 is a wasteful number, since it uses less digits than its factorization.

19880449736334 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4022.

The product of its (nonzero) digits is 376233984, while the sum is 69.

The spelling of 19880449736334 in words is "nineteen trillion, eight hundred eighty billion, four hundred forty-nine million, seven hundred thirty-six thousand, three hundred thirty-four".