1329219923904 has 112 divisors (see below), whose sum is σ = 4002969428640. Its totient is φ = 432266618880.

The previous prime is 1329219923893. The next prime is 1329219923917. The reversal of 1329219923904 is 4093299129231.

1329219923904 is a `hidden beast` number, since 1 + 32 + 9 + 219 + 9 + 2 + 390 + 4 = 666.

It is a super-2 number, since 2×1329219923904² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (54).

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, 9309939 + ... + 9451634.

It is an arithmetic number, because the mean of its divisors is an integer number (35740798470).

Almost surely, 2^{1329219923904} is an apocalyptic number.

It is an amenable number.

1329219923904 is an abundant number, since it is smaller than the sum of its proper divisors (2673749504736).

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

1329219923904 is a wasteful number, since it uses less digits than its factorization.

1329219923904 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18761635 (or 18761619 counting only the distinct ones).

The product of its (nonzero) digits is 1889568, while the sum is 54.

The spelling of 1329219923904 in words is "one trillion, three hundred twenty-nine billion, two hundred nineteen million, nine hundred twenty-three thousand, nine hundred four".