1613325037745 has 8 divisors (see below), whose sum is σ = 1935997535016. Its totient is φ = 1290655037056.

The previous prime is 1613325037741. The next prime is 1613325037747. The reversal of 1613325037745 is 5477305233161.

It can be written as a sum of positive squares in 4 ways, for example, as 2479243264 + 1610845794481 = 49792^2 + 1269191^2 .

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 1613325037745 - 2² = 1613325037741 is a prime.

It is a super-3 number, since 3×1613325037745³ (a number of 38 digits) contains 333 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 1613325037745.

It is not an unprimeable number, because it can be changed into a prime (1613325037741) 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, 1386179 + ... + 2268951.

It is an arithmetic number, because the mean of its divisors is an integer number (241999691877).

Almost surely, 2^{1613325037745} is an apocalyptic number.

It is an amenable number.

1613325037745 is a deficient number, since it is larger than the sum of its proper divisors (322672497271).

1613325037745 is an equidigital number, since it uses as much as digits as its factorization.

1613325037745 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1248291.

The product of its (nonzero) digits is 1587600, while the sum is 47.

The spelling of 1613325037745 in words is "one trillion, six hundred thirteen billion, three hundred twenty-five million, thirty-seven thousand, seven hundred forty-five".