84315251347 has 4 divisors (see below), whose sum is σ = 85906105200. Its totient is φ = 82724397496.

The previous prime is 84315251341. The next prime is 84315251351. The reversal of 84315251347 is 74315251348.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-84315251347 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84315251341) 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, 795426847 + ... + 795426952.

It is an arithmetic number, because the mean of its divisors is an integer number (21476526300).

Almost surely, 2^84315251347 is an apocalyptic number.

84315251347 is a deficient number, since it is larger than the sum of its proper divisors (1590853853).

84315251347 is a wasteful number, since it uses less digits than its factorization.

84315251347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1590853852.

The product of its digits is 403200, while the sum is 43.

Subtracting from 84315251347 its reverse (74315251348), we obtain a palindrome (9999999999).

The spelling of 84315251347 in words is "eighty-four billion, three hundred fifteen million, two hundred fifty-one thousand, three hundred forty-seven".