3620456108725 has 18 divisors (see below), whose sum is σ = 4522374443174. Its totient is φ = 2875223164800.

The previous prime is 3620456108699. The next prime is 3620456108803. The reversal of 3620456108725 is 5278016540263.

It can be written as a sum of positive squares in 9 ways, for example, as 1564082900689 + 2056373208036 = 1250633^2 + 1434006^2 .

It is a de Polignac number, because none of the positive numbers 2^k-3620456108725 is a prime.

It is a super-2 number, since 2×3620456108725² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 3388686 + ... + 4327135.

Almost surely, 2^{3620456108725} is an apocalyptic number.

It is an amenable number.

3620456108725 is a deficient number, since it is larger than the sum of its proper divisors (901918334449).

3620456108725 is an equidigital number, since it uses as much as digits as its factorization.

3620456108725 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7716105 (or 7715963 counting only the distinct ones).

The product of its (nonzero) digits is 2419200, while the sum is 49.

The spelling of 3620456108725 in words is "three trillion, six hundred twenty billion, four hundred fifty-six million, one hundred eight thousand, seven hundred twenty-five".