68346464386 has 32 divisors (see below), whose sum is σ = 112320762480. Its totient is φ = 31046400000.

The previous prime is 68346464363. The next prime is 68346464387.

It is a happy number.

68346464386 is nontrivially palindromic in base 10.

It can be written as a sum of positive squares in 8 ways, for example, as 59301503361 + 9044961025 = 243519^2 + 95105^2 .

It is a super-3 number, since 3×68346464386³ (a number of 33 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (58).

It is a self number, because there is not a number n which added to its sum of digits gives 68346464386.

It is not an unprimeable number, because it can be changed into a prime (68346464387) 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, 6898036 + ... + 6907936.

Almost surely, 2^68346464386 is an apocalyptic number.

68346464386 is a deficient number, since it is larger than the sum of its proper divisors (43974298094).

68346464386 is a wasteful number, since it uses less digits than its factorization.

68346464386 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16950.

The product of its digits is 47775744, while the sum is 58.

The spelling of 68346464386 in words is "sixty-eight billion, three hundred forty-six million, four hundred sixty-four thousand, three hundred eighty-six".