1408634675321 has 4 divisors (see below), whose sum is σ = 1408654421412. Its totient is φ = 1408614929232.

The previous prime is 1408634675251. The next prime is 1408634675389. The reversal of 1408634675321 is 1235764368041.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1359996783721 + 48637891600 = 1166189^2 + 220540^2 .

It is a cyclic number.

It is not a de Polignac number, because 1408634675321 - 2²⁶ = 1408567566457 is a prime.

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 1408634675321.

It is not an unprimeable number, because it can be changed into a prime (1408634677321) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9765650 + ... + 9908843.

It is an arithmetic number, because the mean of its divisors is an integer number (352163605353).

Almost surely, 2^{1408634675321} is an apocalyptic number.

It is an amenable number.

1408634675321 is a deficient number, since it is larger than the sum of its proper divisors (19746091).

1408634675321 is an equidigital number, since it uses as much as digits as its factorization.

1408634675321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19746090.

The product of its (nonzero) digits is 2903040, while the sum is 50.

It can be divided in two parts, 140863 and 4675321, that added together give a palindrome (4816184).

The spelling of 1408634675321 in words is "one trillion, four hundred eight billion, six hundred thirty-four million, six hundred seventy-five thousand, three hundred twenty-one".