68305101513 has 16 divisors (see below), whose sum is σ = 99416678400. Its totient is φ = 41370446480.

The previous prime is 68305101503. The next prime is 68305101523. The reversal of 68305101513 is 31510150386.

It is an interprime number because it is at equal distance from previous prime (68305101503) and next prime (68305101523).

It is not a de Polignac number, because 68305101513 - 2⁹ = 68305101001 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (68305101503) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 612393 + ... + 715286.

It is an arithmetic number, because the mean of its divisors is an integer number (6213542400).

Almost surely, 2^68305101513 is an apocalyptic number.

It is an amenable number.

68305101513 is a deficient number, since it is larger than the sum of its proper divisors (31111576887).

68305101513 is a wasteful number, since it uses less digits than its factorization.

68305101513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329252.

The product of its (nonzero) digits is 10800, while the sum is 33.

Adding to 68305101513 its reverse (31510150386), we get a palindrome (99815251899).

The spelling of 68305101513 in words is "sixty-eight billion, three hundred five million, one hundred one thousand, five hundred thirteen".