68283381651 has 8 divisors (see below), whose sum is σ = 91164149904. Its totient is φ = 45462433920.

The previous prime is 68283381641. The next prime is 68283381737. The reversal of 68283381651 is 15618338286.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 68283381651 - 2¹⁵ = 68283348883 is a prime.

It is a super-2 number, since 2×68283381651² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68283381594 and 68283381603.

It is not an unprimeable number, because it can be changed into a prime (68283381641) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14952466 + ... + 14957031.

It is an arithmetic number, because the mean of its divisors is an integer number (11395518738).

Almost surely, 2^68283381651 is an apocalyptic number.

68283381651 is a deficient number, since it is larger than the sum of its proper divisors (22880768253).

68283381651 is a wasteful number, since it uses less digits than its factorization.

68283381651 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29910261.

The product of its digits is 1658880, while the sum is 51.

The spelling of 68283381651 in words is "sixty-eight billion, two hundred eighty-three million, three hundred eighty-one thousand, six hundred fifty-one".