120790647449 has 4 divisors (see below), whose sum is σ = 120794808960. Its totient is φ = 120786485940.

The previous prime is 120790647437. The next prime is 120790647521. The reversal of 120790647449 is 944746097021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 944746097021 = 53 ⋅17825398057.

It is a cyclic number.

It is not a de Polignac number, because 120790647449 - 2⁴ = 120790647433 is a prime.

It is a super-2 number, since 2×120790647449² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 120790647449.

It is not an unprimeable number, because it can be changed into a prime (120790647749) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2036909 + ... + 2095370.

It is an arithmetic number, because the mean of its divisors is an integer number (30198702240).

Almost surely, 2^120790647449 is an apocalyptic number.

It is an amenable number.

120790647449 is a deficient number, since it is larger than the sum of its proper divisors (4161511).

120790647449 is an equidigital number, since it uses as much as digits as its factorization.

120790647449 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4161510.

The product of its (nonzero) digits is 3048192, while the sum is 53.

The spelling of 120790647449 in words is "one hundred twenty billion, seven hundred ninety million, six hundred forty-seven thousand, four hundred forty-nine".