68365433501 has 4 divisors (see below), whose sum is σ = 68442858432. Its totient is φ = 68288008572.

The previous prime is 68365433483. The next prime is 68365433527. The reversal of 68365433501 is 10533456386.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 68365433501 - 2¹⁰ = 68365432477 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (68365433551) 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, 38711141 + ... + 38712906.

It is an arithmetic number, because the mean of its divisors is an integer number (17110714608).

Almost surely, 2^68365433501 is an apocalyptic number.

It is an amenable number.

68365433501 is a deficient number, since it is larger than the sum of its proper divisors (77424931).

68365433501 is an equidigital number, since it uses as much as digits as its factorization.

68365433501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77424930.

The product of its (nonzero) digits is 777600, while the sum is 44.

Adding to 68365433501 its reverse (10533456386), we get a palindrome (78898889887).

The spelling of 68365433501 in words is "sixty-eight billion, three hundred sixty-five million, four hundred thirty-three thousand, five hundred one".