19912141934880 has 192 divisors, whose sum is σ = 69373737715968. Its totient is φ = 4768978636800.

The previous prime is 19912141934837. The next prime is 19912141934897. The reversal of 19912141934880 is 8843914121991.

It is a super-2 number, since 2×19912141934880² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 42891396 + ... + 43353155.

It is an arithmetic number, because the mean of its divisors is an integer number (361321550604).

Almost surely, 2^{19912141934880} is an apocalyptic number.

19912141934880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19912141934880 is an abundant number, since it is smaller than the sum of its proper divisors (49461595781088).

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

19912141934880 is a wasteful number, since it uses less digits than its factorization.

19912141934880 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86244619 (or 86244611 counting only the distinct ones).

The product of its (nonzero) digits is 4478976, while the sum is 60.

The spelling of 19912141934880 in words is "nineteen trillion, nine hundred twelve billion, one hundred forty-one million, nine hundred thirty-four thousand, eight hundred eighty".