1323916613880 has 128 divisors (see below), whose sum is σ = 4539372986880. Its totient is φ = 302594158080.

The previous prime is 1323916613813. The next prime is 1323916613881. The reversal of 1323916613880 is 883166193231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1323916613881) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29568310 + ... + 29613050.

It is an arithmetic number, because the mean of its divisors is an integer number (35463851460).

Almost surely, 2^{1323916613880} is an apocalyptic number.

1323916613880 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1323916613880 is an abundant number, since it is smaller than the sum of its proper divisors (3215456373000).

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

1323916613880 is a wasteful number, since it uses less digits than its factorization.

1323916613880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79989 (or 79985 counting only the distinct ones).

The product of its (nonzero) digits is 1119744, while the sum is 51.

The spelling of 1323916613880 in words is "one trillion, three hundred twenty-three billion, nine hundred sixteen million, six hundred thirteen thousand, eight hundred eighty".