19790766049860 has 480 divisors, whose sum is σ = 69326866194432. Its totient is φ = 4693250211840.

The previous prime is 19790766049841. The next prime is 19790766049867. The reversal of 19790766049860 is 6894066709791.

19790766049860 is a `hidden beast` number, since 1 + 9 + 7 + 9 + 0 + 7 + 6 + 604 + 9 + 8 + 6 + 0 = 666.

It is not an unprimeable number, because it can be changed into a prime (19790766049867) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 159 ways as a sum of consecutive naturals, for example, 145519812 + ... + 145655748.

Almost surely, 2^{19790766049860} is an apocalyptic number.

19790766049860 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 19790766049860, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (34663433097216).

19790766049860 is an abundant number, since it is smaller than the sum of its proper divisors (49536100144572).

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

19790766049860 is a wasteful number, since it uses less digits than its factorization.

19790766049860 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136225 (or 136214 counting only the distinct ones).

The product of its (nonzero) digits is 246903552, while the sum is 72.

The spelling of 19790766049860 in words is "nineteen trillion, seven hundred ninety billion, seven hundred sixty-six million, forty-nine thousand, eight hundred sixty".