1681214149408 has 48 divisors (see below), whose sum is σ = 3484242216000. Its totient is φ = 796330973952.

The previous prime is 1681214149357. The next prime is 1681214149423. The reversal of 1681214149408 is 8049414121861.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20039773 + ... + 20123491.

It is an arithmetic number, because the mean of its divisors is an integer number (72588379500).

Almost surely, 2^{1681214149408} is an apocalyptic number.

It is an amenable number.

1681214149408 is an abundant number, since it is smaller than the sum of its proper divisors (1803028066592).

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

1681214149408 is a wasteful number, since it uses less digits than its factorization.

1681214149408 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116777 (or 116769 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 49.

The spelling of 1681214149408 in words is "one trillion, six hundred eighty-one billion, two hundred fourteen million, one hundred forty-nine thousand, four hundred eight".