15321414551 has 2 divisors, whose sum is σ = 15321414552. Its totient is φ = 15321414550.

The previous prime is 15321414539. The next prime is 15321414613. The reversal of 15321414551 is 15541412351.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 15321414551 - 2¹⁴ = 15321398167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (15321464551) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7660707275 + 7660707276.

It is an arithmetic number, because the mean of its divisors is an integer number (7660707276).

Almost surely, 2^15321414551 is an apocalyptic number.

15321414551 is a deficient number, since it is larger than the sum of its proper divisors (1).

15321414551 is an equidigital number, since it uses as much as digits as its factorization.

15321414551 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 12000, while the sum is 32.

The spelling of 15321414551 in words is "fifteen billion, three hundred twenty-one million, four hundred fourteen thousand, five hundred fifty-one".