42012240051 has 8 divisors (see below), whose sum is σ = 58964547520. Its totient is φ = 26534046312.

The previous prime is 42012240047. The next prime is 42012240071. The reversal of 42012240051 is 15004221024.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 42012240051 - 2² = 42012240047 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (42012240071) by changing a digit.

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 in 7 ways as a sum of consecutive naturals, for example, 368528365 + ... + 368528478.

It is an arithmetic number, because the mean of its divisors is an integer number (7370568440).

Almost surely, 2^42012240051 is an apocalyptic number.

42012240051 is a deficient number, since it is larger than the sum of its proper divisors (16952307469).

42012240051 is a wasteful number, since it uses less digits than its factorization.

42012240051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 737056865.

The product of its (nonzero) digits is 640, while the sum is 21.

Adding to 42012240051 its reverse (15004221024), we get a palindrome (57016461075).

The spelling of 42012240051 in words is "forty-two billion, twelve million, two hundred forty thousand, fifty-one".