19169394500472 has 256 divisors, whose sum is σ = 50933411020800. Its totient is φ = 6004170385920.

The previous prime is 19169394500441. The next prime is 19169394500497. The reversal of 19169394500472 is 27400549396191.

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, 1217947179 + ... + 1217962917.

It is an arithmetic number, because the mean of its divisors is an integer number (198958636800).

Almost surely, 2^{19169394500472} is an apocalyptic number.

19169394500472 is a gapful number since it is divisible by the number (12) 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 19169394500472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25466705510400).

19169394500472 is an abundant number, since it is smaller than the sum of its proper divisors (31764016520328).

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

19169394500472 is a wasteful number, since it uses less digits than its factorization.

19169394500472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16186 (or 16182 counting only the distinct ones).

The product of its (nonzero) digits is 14696640, while the sum is 60.

The spelling of 19169394500472 in words is "nineteen trillion, one hundred sixty-nine billion, three hundred ninety-four million, five hundred thousand, four hundred seventy-two".