84315251299 has 4 divisors (see below), whose sum is σ = 86109192864. Its totient is φ = 82521309736.

The previous prime is 84315251287. The next prime is 84315251323. The reversal of 84315251299 is 99215251348.

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

It is a cyclic number.

It is not a de Polignac number, because 84315251299 - 2¹³ = 84315243107 is a prime.

It is a super-2 number, since 2×84315251299² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (84315251239) 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, 896970712 + ... + 896970805.

It is an arithmetic number, because the mean of its divisors is an integer number (21527298216).

Almost surely, 2^84315251299 is an apocalyptic number.

84315251299 is a deficient number, since it is larger than the sum of its proper divisors (1793941565).

84315251299 is a wasteful number, since it uses less digits than its factorization.

84315251299 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1793941564.

The product of its digits is 777600, while the sum is 49.

Adding to 84315251299 its sum of digits (49), we get a palindrome (84315251348).

The spelling of 84315251299 in words is "eighty-four billion, three hundred fifteen million, two hundred fifty-one thousand, two hundred ninety-nine".