1208455723345 has 16 divisors (see below), whose sum is σ = 1653561136080. Its totient is φ = 839904067584.

The previous prime is 1208455723309. The next prime is 1208455723403. The reversal of 1208455723345 is 5433275548021.

It can be written as a sum of positive squares in 8 ways, for example, as 102018915216 + 1106436808129 = 319404^2 + 1051873^2 .

It is a cyclic number.

It is not a de Polignac number, because 1208455723345 - 2²⁹ = 1207918852433 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 546811440 + ... + 546813649.

It is an arithmetic number, because the mean of its divisors is an integer number (103347571005).

Almost surely, 2^{1208455723345} is an apocalyptic number.

It is an amenable number.

1208455723345 is a deficient number, since it is larger than the sum of its proper divisors (445105412735).

1208455723345 is a wasteful number, since it uses less digits than its factorization.

1208455723345 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1093625124.

The product of its (nonzero) digits is 4032000, while the sum is 49.

The spelling of 1208455723345 in words is "one trillion, two hundred eight billion, four hundred fifty-five million, seven hundred twenty-three thousand, three hundred forty-five".