215486849157 has 8 divisors (see below), whose sum is σ = 287350687584. Its totient is φ = 143640455088.

The previous prime is 215486849129. The next prime is 215486849159. The reversal of 215486849157 is 751948684512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 215486849157 - 2¹¹ = 215486847109 is a prime.

It is a super-2 number, since 2×215486849157² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 215486849157.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215486849159) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4332238 + ... + 4381695.

It is an arithmetic number, because the mean of its divisors is an integer number (35918835948).

Almost surely, 2^215486849157 is an apocalyptic number.

It is an amenable number.

215486849157 is a deficient number, since it is larger than the sum of its proper divisors (71863838427).

215486849157 is an equidigital number, since it uses as much as digits as its factorization.

215486849157 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8722179.

The product of its digits is 19353600, while the sum is 60.

The spelling of 215486849157 in words is "two hundred fifteen billion, four hundred eighty-six million, eight hundred forty-nine thousand, one hundred fifty-seven".