42523623201644 has 48 divisors (see below), whose sum is σ = 80406049058496. Its totient is φ = 19561404614400.

The previous prime is 42523623201643. The next prime is 42523623201721. The reversal of 42523623201644 is 44610232632524.

It is a junction number, because it is equal to n+sod(n) for n = 42523623201595 and 42523623201604.

It is not an unprimeable number, because it can be changed into a prime (42523623201643) 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, 18034649 + ... + 20255759.

It is an arithmetic number, because the mean of its divisors is an integer number (1675126022052).

Almost surely, 2^{42523623201644} is an apocalyptic number.

It is an amenable number.

42523623201644 is a deficient number, since it is larger than the sum of its proper divisors (37882425856852).

42523623201644 is a wasteful number, since it uses less digits than its factorization.

42523623201644 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2222346 (or 2222344 counting only the distinct ones).

The product of its (nonzero) digits is 1658880, while the sum is 44.

The spelling of 42523623201644 in words is "forty-two trillion, five hundred twenty-three billion, six hundred twenty-three million, two hundred one thousand, six hundred forty-four".