15415306425551 has 2 divisors, whose sum is σ = 15415306425552. Its totient is φ = 15415306425550.

The previous prime is 15415306425523. The next prime is 15415306425553. The reversal of 15415306425551 is 15552460351451.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15415306425551 is a prime.

Together with 15415306425553, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 15415306425496 and 15415306425505.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15415306425553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7707653212775 + 7707653212776.

It is an arithmetic number, because the mean of its divisors is an integer number (7707653212776).

Almost surely, 2^{15415306425551} is an apocalyptic number.

15415306425551 is a deficient number, since it is larger than the sum of its proper divisors (1).

15415306425551 is an equidigital number, since it uses as much as digits as its factorization.

15415306425551 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1800000, while the sum is 47.

The spelling of 15415306425551 in words is "fifteen trillion, four hundred fifteen billion, three hundred six million, four hundred twenty-five thousand, five hundred fifty-one".