1396813633920 has 192 divisors, whose sum is σ = 4978965363840. Its totient is φ = 360467988480.

The previous prime is 1396813633879. The next prime is 1396813633973. The reversal of 1396813633920 is 293363186931.

1396813633920 is a `hidden beast` number, since 1 + 396 + 8 + 136 + 33 + 92 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (192).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 3732769 + ... + 4089888.

It is an arithmetic number, because the mean of its divisors is an integer number (25932111270).

Almost surely, 2^{1396813633920} is an apocalyptic number.

1396813633920 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1396813633920 is an abundant number, since it is smaller than the sum of its proper divisors (3582151729920).

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

1396813633920 is a wasteful number, since it uses less digits than its factorization.

1396813633920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7822713 (or 7822698 counting only the distinct ones).

The product of its (nonzero) digits is 3779136, while the sum is 54.

The spelling of 1396813633920 in words is "one trillion, three hundred ninety-six billion, eight hundred thirteen million, six hundred thirty-three thousand, nine hundred twenty".