42465216623 has 4 divisors (see below), whose sum is σ = 44963170560. Its totient is φ = 39967262688.

The previous prime is 42465216571. The next prime is 42465216637. The reversal of 42465216623 is 32661256424.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 42465216623 - 2¹² = 42465212527 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (42465216643) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1248976943 + ... + 1248976976.

It is an arithmetic number, because the mean of its divisors is an integer number (11240792640).

Almost surely, 2^42465216623 is an apocalyptic number.

42465216623 is a deficient number, since it is larger than the sum of its proper divisors (2497953937).

42465216623 is a wasteful number, since it uses less digits than its factorization.

42465216623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2497953936.

The product of its digits is 414720, while the sum is 41.

The spelling of 42465216623 in words is "forty-two billion, four hundred sixty-five million, two hundred sixteen thousand, six hundred twenty-three".