42500332451 has 2 divisors, whose sum is σ = 42500332452. Its totient is φ = 42500332450.

The previous prime is 42500332447. The next prime is 42500332487. The reversal of 42500332451 is 15423300524.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 42500332451 - 2² = 42500332447 is a prime.

It is not a weakly prime, because it can be changed into another prime (42500332411) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 21250166225 + 21250166226.

It is an arithmetic number, because the mean of its divisors is an integer number (21250166226).

Almost surely, 2^42500332451 is an apocalyptic number.

42500332451 is a deficient number, since it is larger than the sum of its proper divisors (1).

42500332451 is an equidigital number, since it uses as much as digits as its factorization.

42500332451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 42500332451 its reverse (15423300524), we get a palindrome (57923632975).

The spelling of 42500332451 in words is "forty-two billion, five hundred million, three hundred thirty-two thousand, four hundred fifty-one".