215734172313 has 8 divisors (see below), whose sum is σ = 313795159776. Its totient is φ = 130747983200.

The previous prime is 215734172309. The next prime is 215734172323. The reversal of 215734172313 is 313271437512.

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

It is a cyclic number.

It is not a de Polignac number, because 215734172313 - 2² = 215734172309 is a prime.

It is not an unprimeable number, because it can be changed into a prime (215734172323) 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, 3268699548 + ... + 3268699613.

It is an arithmetic number, because the mean of its divisors is an integer number (39224394972).

Almost surely, 2^215734172313 is an apocalyptic number.

It is an amenable number.

215734172313 is a deficient number, since it is larger than the sum of its proper divisors (98060987463).

215734172313 is a wasteful number, since it uses less digits than its factorization.

215734172313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6537399175.

The product of its digits is 105840, while the sum is 39.

The spelling of 215734172313 in words is "two hundred fifteen billion, seven hundred thirty-four million, one hundred seventy-two thousand, three hundred thirteen".