33420051451 has 2 divisors, whose sum is σ = 33420051452. Its totient is φ = 33420051450.

The previous prime is 33420051377. The next prime is 33420051479. The reversal of 33420051451 is 15415002433.

It is an a-pointer prime, because the next prime (33420051479) can be obtained adding 33420051451 to its sum of digits (28).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 33420051451 - 2¹³ = 33420043259 is a prime.

It is a super-2 number, since 2×33420051451² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (33420051481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16710025725 + 16710025726.

It is an arithmetic number, because the mean of its divisors is an integer number (16710025726).

Almost surely, 2^33420051451 is an apocalyptic number.

33420051451 is a deficient number, since it is larger than the sum of its proper divisors (1).

33420051451 is an equidigital number, since it uses as much as digits as its factorization.

33420051451 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 7200, while the sum is 28.

Adding to 33420051451 its reverse (15415002433), we get a palindrome (48835053884).

The spelling of 33420051451 in words is "thirty-three billion, four hundred twenty million, fifty-one thousand, four hundred fifty-one".