74400710252551 has 2 divisors, whose sum is σ = 74400710252552. Its totient is φ = 74400710252550.

The previous prime is 74400710252537. The next prime is 74400710252569. The reversal of 74400710252551 is 15525201700447.

It is a weak prime.

It is an emirp because it is prime and its reverse (15525201700447) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 74400710252551 - 2⁷ = 74400710252423 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 74400710252498 and 74400710252507.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (74400710252521) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37200355126275 + 37200355126276.

It is an arithmetic number, because the mean of its divisors is an integer number (37200355126276).

Almost surely, 2^{74400710252551} is an apocalyptic number.

74400710252551 is a deficient number, since it is larger than the sum of its proper divisors (1).

74400710252551 is an equidigital number, since it uses as much as digits as its factorization.

74400710252551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 392000, while the sum is 43.

Adding to 74400710252551 its reverse (15525201700447), we get a palindrome (89925911952998).

The spelling of 74400710252551 in words is "seventy-four trillion, four hundred billion, seven hundred ten million, two hundred fifty-two thousand, five hundred fifty-one".