1451838603601 has 4 divisors (see below), whose sum is σ = 1451842977204. Its totient is φ = 1451834230000.

The previous prime is 1451838603497. The next prime is 1451838603619. The reversal of 1451838603601 is 1063068381541.

It is a happy number.

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 406125798400 + 1045712805201 = 637280^2 + 1022601^2 .

It is a cyclic number.

It is not a de Polignac number, because 1451838603601 - 2¹⁷ = 1451838472529 is a prime.

It is a super-2 number, since 2×1451838603601² (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 (1451838603671) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1643950 + ... + 2367751.

It is an arithmetic number, because the mean of its divisors is an integer number (362960744301).

Almost surely, 2^{1451838603601} is an apocalyptic number.

It is an amenable number.

1451838603601 is a deficient number, since it is larger than the sum of its proper divisors (4373603).

1451838603601 is an equidigital number, since it uses as much as digits as its factorization.

1451838603601 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4373602.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 1451838603601 in words is "one trillion, four hundred fifty-one billion, eight hundred thirty-eight million, six hundred three thousand, six hundred one".