1738706720849 has 8 divisors (see below), whose sum is σ = 1994114928960. Its totient is φ = 1485053896176.

The previous prime is 1738706720831. The next prime is 1738706720851. The reversal of 1738706720849 is 9480276078371.

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 1738706720849 - 2¹² = 1738706716753 is a prime.

It is a super-2 number, since 2×1738706720849² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1738706720791 and 1738706720800.

It is not an unprimeable number, because it can be changed into a prime (1738706720899) 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, 438843734 + ... + 438847695.

It is an arithmetic number, because the mean of its divisors is an integer number (249264366120).

Almost surely, 2^{1738706720849} is an apocalyptic number.

It is an amenable number.

1738706720849 is a deficient number, since it is larger than the sum of its proper divisors (255408208111).

1738706720849 is an equidigital number, since it uses as much as digits as its factorization.

1738706720849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 877691719.

The product of its (nonzero) digits is 28449792, while the sum is 62.

The spelling of 1738706720849 in words is "one trillion, seven hundred thirty-eight billion, seven hundred six million, seven hundred twenty thousand, eight hundred forty-nine".