19782155367352 has 128 divisors (see below), whose sum is σ = 44299497922560. Its totient is φ = 8097344703360.

The previous prime is 19782155367257. The next prime is 19782155367367. The reversal of 19782155367352 is 25376355128791.

It is a congruent number.

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, 4412702503 + ... + 4412706985.

It is an arithmetic number, because the mean of its divisors is an integer number (346089827520).

Almost surely, 2^{19782155367352} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 19782155367352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22149748961280).

19782155367352 is an abundant number, since it is smaller than the sum of its proper divisors (24517342555208).

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

19782155367352 is a wasteful number, since it uses less digits than its factorization.

19782155367352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8873 (or 8869 counting only the distinct ones).

The product of its digits is 95256000, while the sum is 64.

The spelling of 19782155367352 in words is "nineteen trillion, seven hundred eighty-two billion, one hundred fifty-five million, three hundred sixty-seven thousand, three hundred fifty-two".