2723664622545 has 24 divisors (see below), whose sum is σ = 4721161933800. Its totient is φ = 1452577053696.

The previous prime is 2723664622477. The next prime is 2723664622589. The reversal of 2723664622545 is 5452264663272.

2723664622545 is a `hidden beast` number, since 2 + 7 + 2 + 3 + 6 + 6 + 4 + 622 + 5 + 4 + 5 = 666.

It can be written as a sum of positive squares in 4 ways, for example, as 42556389264 + 2681108233281 = 206292^2 + 1637409^2 .

It is not a de Polignac number, because 2723664622545 - 2⁹ = 2723664622033 is a prime.

It is a super-2 number, since 2×2723664622545² (a number of 26 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2723664622491 and 2723664622500.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 609091 + ... + 2412119.

It is an arithmetic number, because the mean of its divisors is an integer number (196715080575).

Almost surely, 2^{2723664622545} is an apocalyptic number.

It is an amenable number.

2723664622545 is a deficient number, since it is larger than the sum of its proper divisors (1997497311255).

2723664622545 is a wasteful number, since it uses less digits than its factorization.

2723664622545 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1836609 (or 1836606 counting only the distinct ones).

The product of its digits is 29030400, while the sum is 54.

The spelling of 2723664622545 in words is "two trillion, seven hundred twenty-three billion, six hundred sixty-four million, six hundred twenty-two thousand, five hundred forty-five".