2745513600621 has 16 divisors (see below), whose sum is σ = 3995093203968. Its totient is φ = 1663273105200.

The previous prime is 2745513600607. The next prime is 2745513600631. The reversal of 2745513600621 is 1260063155472.

It is not a de Polignac number, because 2745513600621 - 2¹⁹ = 2745513076333 is a prime.

It is a super-3 number, since 3×2745513600621³ (a number of 38 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2745513600631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16780645 + ... + 16943466.

It is an arithmetic number, because the mean of its divisors is an integer number (249693325248).

Almost surely, 2^{2745513600621} is an apocalyptic number.

It is an amenable number.

2745513600621 is a deficient number, since it is larger than the sum of its proper divisors (1249579603347).

2745513600621 is a wasteful number, since it uses less digits than its factorization.

2745513600621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33726592.

The product of its (nonzero) digits is 302400, while the sum is 42.

The spelling of 2745513600621 in words is "two trillion, seven hundred forty-five billion, five hundred thirteen million, six hundred thousand, six hundred twenty-one".