215414158847 has 4 divisors (see below), whose sum is σ = 222842233320. Its totient is φ = 207986084376.

The previous prime is 215414158837. The next prime is 215414158849. The reversal of 215414158847 is 748851414512.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 215414158847 - 2¹² = 215414154751 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 215414158795 and 215414158804.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215414158849) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3714037193 + ... + 3714037250.

It is an arithmetic number, because the mean of its divisors is an integer number (55710558330).

Almost surely, 2^215414158847 is an apocalyptic number.

215414158847 is a deficient number, since it is larger than the sum of its proper divisors (7428074473).

215414158847 is an equidigital number, since it uses as much as digits as its factorization.

215414158847 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7428074472.

The product of its digits is 1433600, while the sum is 50.

The spelling of 215414158847 in words is "two hundred fifteen billion, four hundred fourteen million, one hundred fifty-eight thousand, eight hundred forty-seven".