1215434430479 has 2 divisors, whose sum is σ = 1215434430480. Its totient is φ = 1215434430478.

The previous prime is 1215434430443. The next prime is 1215434430577. The reversal of 1215434430479 is 9740344345121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1215434430479 - 2¹² = 1215434426383 is a prime.

It is a super-2 number, since 2×1215434430479² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1215434420479) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 607717215239 + 607717215240.

It is an arithmetic number, because the mean of its divisors is an integer number (607717215240).

Almost surely, 2^{1215434430479} is an apocalyptic number.

1215434430479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1215434430479 is an equidigital number, since it uses as much as digits as its factorization.

1215434430479 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1451520, while the sum is 47.

The spelling of 1215434430479 in words is "one trillion, two hundred fifteen billion, four hundred thirty-four million, four hundred thirty thousand, four hundred seventy-nine".