68877650351 has 4 divisors (see below), whose sum is σ = 68880575304. Its totient is φ = 68874725400.

The previous prime is 68877650299. The next prime is 68877650357. The reversal of 68877650351 is 15305677886.

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 68877650351 - 2¹⁴ = 68877633967 is a prime.

It is a super-2 number, since 2×68877650351² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68877650357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1426865 + ... + 1474346.

It is an arithmetic number, because the mean of its divisors is an integer number (17220143826).

Almost surely, 2^68877650351 is an apocalyptic number.

68877650351 is a deficient number, since it is larger than the sum of its proper divisors (2924953).

68877650351 is a wasteful number, since it uses less digits than its factorization.

68877650351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2924952.

The product of its (nonzero) digits is 8467200, while the sum is 56.

The spelling of 68877650351 in words is "sixty-eight billion, eight hundred seventy-seven million, six hundred fifty thousand, three hundred fifty-one".