15782710120213 has 4 divisors (see below), whose sum is σ = 15838479414208. Its totient is φ = 15726940826220.

The previous prime is 15782710120103. The next prime is 15782710120217. The reversal of 15782710120213 is 31202101728751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-15782710120213 is a prime.

It is a super-2 number, since 2×15782710120213² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (15782710120217) 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 in 3 ways as a sum of consecutive naturals, for example, 27884646573 + ... + 27884647138.

It is an arithmetic number, because the mean of its divisors is an integer number (3959619853552).

Almost surely, 2^{15782710120213} is an apocalyptic number.

It is an amenable number.

15782710120213 is a deficient number, since it is larger than the sum of its proper divisors (55769293995).

15782710120213 is an equidigital number, since it uses as much as digits as its factorization.

15782710120213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55769293994.

The product of its (nonzero) digits is 47040, while the sum is 40.

Adding to 15782710120213 its reverse (31202101728751), we get a palindrome (46984811848964).

The spelling of 15782710120213 in words is "fifteen trillion, seven hundred eighty-two billion, seven hundred ten million, one hundred twenty thousand, two hundred thirteen".