2745006121636 has 27 divisors (see below), whose sum is σ = 4847309281633. Its totient is φ = 1360171453760.

The previous prime is 2745006121591. The next prime is 2745006121691. The reversal of 2745006121636 is 6361216005472.

The square root of 2745006121636 is 1656806.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 48369204900 + 2696636916736 = 219930^2 + 1642144^2 .

It is a super-2 number, since 2×2745006121636² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2745006121592 and 2745006121601.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 374434491 + ... + 374441821.

Almost surely, 2^{2745006121636} is an apocalyptic number.

2745006121636 is the 1656806-th square number.

It is an amenable number.

2745006121636 is a deficient number, since it is larger than the sum of its proper divisors (2102303159997).

2745006121636 is an frugal number, since it uses more digits than its factorization.

2745006121636 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14892 (or 7446 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 43.

The spelling of 2745006121636 in words is "two trillion, seven hundred forty-five billion, six million, one hundred twenty-one thousand, six hundred thirty-six".