2172408919604 has 144 divisors (see below), whose sum is σ = 4978597843968. Its totient is φ = 810976320000.

The previous prime is 2172408919553. The next prime is 2172408919613. The reversal of 2172408919604 is 4069198042712.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 10505432 + ... + 10710224.

Almost surely, 2^{2172408919604} 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 2172408919604, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2489298921984).

2172408919604 is an abundant number, since it is smaller than the sum of its proper divisors (2806188924364).

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

2172408919604 is a wasteful number, since it uses less digits than its factorization.

2172408919604 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204958 (or 204945 counting only the distinct ones).

The product of its (nonzero) digits is 1741824, while the sum is 53.

The spelling of 2172408919604 in words is "two trillion, one hundred seventy-two billion, four hundred eight million, nine hundred nineteen thousand, six hundred four".