68705783763 has 4 divisors (see below), whose sum is σ = 91607711688. Its totient is φ = 45803855840.

The previous prime is 68705783737. The next prime is 68705783767. The reversal of 68705783763 is 36738750786.

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 68705783763 - 2³² = 64410816467 is a prime.

It is a super-2 number, since 2×68705783763² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 68705783697 and 68705783706.

It is not an unprimeable number, because it can be changed into a prime (68705783767) 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, 11450963958 + ... + 11450963963.

It is an arithmetic number, because the mean of its divisors is an integer number (22901927922).

Almost surely, 2^68705783763 is an apocalyptic number.

68705783763 is a deficient number, since it is larger than the sum of its proper divisors (22901927925).

68705783763 is a wasteful number, since it uses less digits than its factorization.

68705783763 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22901927924.

The product of its (nonzero) digits is 35562240, while the sum is 60.

The spelling of 68705783763 in words is "sixty-eight billion, seven hundred five million, seven hundred eighty-three thousand, seven hundred sixty-three".