1683801345138 has 64 divisors (see below), whose sum is σ = 3738326376960. Its totient is φ = 501349363200.

The previous prime is 1683801345137. The next prime is 1683801345169. The reversal of 1683801345138 is 8315431083861.

It is not an unprimeable number, because it can be changed into a prime (1683801345137) 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, 56208 + ... + 1835963.

It is an arithmetic number, because the mean of its divisors is an integer number (58411349640).

Almost surely, 2^{1683801345138} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1683801345138, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1869163188480).

1683801345138 is an abundant number, since it is smaller than the sum of its proper divisors (2054525031822).

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

1683801345138 is a wasteful number, since it uses less digits than its factorization.

1683801345138 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1892423.

The product of its (nonzero) digits is 1658880, while the sum is 51.

The spelling of 1683801345138 in words is "one trillion, six hundred eighty-three billion, eight hundred one million, three hundred forty-five thousand, one hundred thirty-eight".