42051051451 has 2 divisors, whose sum is σ = 42051051452. Its totient is φ = 42051051450.

The previous prime is 42051051433. The next prime is 42051051479. The reversal of 42051051451 is 15415015024.

It is an a-pointer prime, because the next prime (42051051479) can be obtained adding 42051051451 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42051051451 - 2⁷ = 42051051323 is a prime.

It is not a weakly prime, because it can be changed into another prime (42051051491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21025525725 + 21025525726.

It is an arithmetic number, because the mean of its divisors is an integer number (21025525726).

Almost surely, 2^42051051451 is an apocalyptic number.

42051051451 is a deficient number, since it is larger than the sum of its proper divisors (1).

42051051451 is an equidigital number, since it uses as much as digits as its factorization.

42051051451 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4000, while the sum is 28.

Adding to 42051051451 its reverse (15415015024), we get a palindrome (57466066475).

The spelling of 42051051451 in words is "forty-two billion, fifty-one million, fifty-one thousand, four hundred fifty-one".