42123051662 has 4 divisors (see below), whose sum is σ = 63184577496. Its totient is φ = 21061525830.

The previous prime is 42123051637. The next prime is 42123051671. The reversal of 42123051662 is 26615032124.

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

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10530762914 + ... + 10530762917.

It is an arithmetic number, because the mean of its divisors is an integer number (15796144374).

Almost surely, 2^42123051662 is an apocalyptic number.

42123051662 is a deficient number, since it is larger than the sum of its proper divisors (21061525834).

42123051662 is a wasteful number, since it uses less digits than its factorization.

42123051662 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21061525833.

The product of its (nonzero) digits is 17280, while the sum is 32.

Adding to 42123051662 its reverse (26615032124), we get a palindrome (68738083786).

The spelling of 42123051662 in words is "forty-two billion, one hundred twenty-three million, fifty-one thousand, six hundred sixty-two".