1215713465434 has 16 divisors (see below), whose sum is σ = 1963927005768. Its totient is φ = 561075043392.

The previous prime is 1215713465377. The next prime is 1215713465441. The reversal of 1215713465434 is 4345643175121.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 948783143025 + 266930322409 = 974055^2 + 516653^2 .

It is an unprimeable number.

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 in 7 ways as a sum of consecutive naturals, for example, 337077 + ... + 1595320.

Almost surely, 2^{1215713465434} is an apocalyptic number.

1215713465434 is a deficient number, since it is larger than the sum of its proper divisors (748213540334).

1215713465434 is a wasteful number, since it uses less digits than its factorization.

1215713465434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1956609.

The product of its digits is 1209600, while the sum is 46.

The spelling of 1215713465434 in words is "one trillion, two hundred fifteen billion, seven hundred thirteen million, four hundred sixty-five thousand, four hundred thirty-four".