42466323647638 has 32 divisors (see below), whose sum is σ = 71010373254912. Its totient is φ = 18885160912800.

The previous prime is 42466323647633. The next prime is 42466323647647. The reversal of 42466323647638 is 83674632366424.

It is a self number, because there is not a number n which added to its sum of digits gives 42466323647638.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42466323647633) 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, 112707433 + ... + 113083588.

It is an arithmetic number, because the mean of its divisors is an integer number (2219074164216).

Almost surely, 2^{42466323647638} is an apocalyptic number.

42466323647638 is a deficient number, since it is larger than the sum of its proper divisors (28544049607274).

42466323647638 is a wasteful number, since it uses less digits than its factorization.

42466323647638 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 225791220.

The product of its digits is 501645312, while the sum is 64.

The spelling of 42466323647638 in words is "forty-two trillion, four hundred sixty-six billion, three hundred twenty-three million, six hundred forty-seven thousand, six hundred thirty-eight".