19164907621140 has 48 divisors (see below), whose sum is σ = 53898136713792. Its totient is φ = 5088128187136.

The previous prime is 19164907621051. The next prime is 19164907621157. The reversal of 19164907621140 is 4112670946191.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 703543929 + ... + 703571168.

It is an arithmetic number, because the mean of its divisors is an integer number (1122877848204).

Almost surely, 2^{19164907621140} is an apocalyptic number.

19164907621140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

19164907621140 is an abundant number, since it is smaller than the sum of its proper divisors (34733229092652).

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

19164907621140 is a wasteful number, since it uses less digits than its factorization.

19164907621140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407115336 (or 1407115334 counting only the distinct ones).

The product of its (nonzero) digits is 653184, while the sum is 51.

The spelling of 19164907621140 in words is "nineteen trillion, one hundred sixty-four billion, nine hundred seven million, six hundred twenty-one thousand, one hundred forty".