68462956739 has 4 divisors (see below), whose sum is σ = 71439607056. Its totient is φ = 65486306424.

The previous prime is 68462956729. The next prime is 68462956759. The reversal of 68462956739 is 93765926486.

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-68462956739 is a prime.

It is not an unprimeable number, because it can be changed into a prime (68462956729) 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, 1488325124 + ... + 1488325169.

It is an arithmetic number, because the mean of its divisors is an integer number (17859901764).

Almost surely, 2^68462956739 is an apocalyptic number.

68462956739 is a deficient number, since it is larger than the sum of its proper divisors (2976650317).

68462956739 is a wasteful number, since it uses less digits than its factorization.

68462956739 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2976650316.

The product of its digits is 117573120, while the sum is 65.

It can be divided in two parts, 68462 and 956739, that added together give a palindrome (1025201).

The spelling of 68462956739 in words is "sixty-eight billion, four hundred sixty-two million, nine hundred fifty-six thousand, seven hundred thirty-nine".