215734891414 has 32 divisors (see below), whose sum is σ = 386155123200. Its totient is φ = 90307616616.

The previous prime is 215734891369. The next prime is 215734891429. The reversal of 215734891414 is 414198437512.

It is a Harshad number since it is a multiple of its sum of digits (49).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3627274 + ... + 3686269.

It is an arithmetic number, because the mean of its divisors is an integer number (12067347600).

Almost surely, 2^215734891414 is an apocalyptic number.

215734891414 is a deficient number, since it is larger than the sum of its proper divisors (170420231786).

215734891414 is an equidigital number, since it uses as much as digits as its factorization.

215734891414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7313609 (or 7313595 counting only the distinct ones).

The product of its digits is 967680, while the sum is 49.

The spelling of 215734891414 in words is "two hundred fifteen billion, seven hundred thirty-four million, eight hundred ninety-one thousand, four hundred fourteen".