1442807661683 has 8 divisors (see below), whose sum is σ = 1447773186048. Its totient is φ = 1437842418624.

The previous prime is 1442807661671. The next prime is 1442807661697. The reversal of 1442807661683 is 3861667082441.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1442807661683 - 2¹⁰ = 1442807660659 is a prime.

It is a super-2 number, since 2×1442807661683² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1442807661613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20237966 + ... + 20309132.

It is an arithmetic number, because the mean of its divisors is an integer number (180971648256).

Almost surely, 2^{1442807661683} is an apocalyptic number.

1442807661683 is a deficient number, since it is larger than the sum of its proper divisors (4965524365).

1442807661683 is an equidigital number, since it uses as much as digits as its factorization.

1442807661683 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140653.

The product of its (nonzero) digits is 9289728, while the sum is 56.

The spelling of 1442807661683 in words is "one trillion, four hundred forty-two billion, eight hundred seven million, six hundred sixty-one thousand, six hundred eighty-three".