68776650690 has 64 divisors (see below), whose sum is σ = 180974822400. Its totient is φ = 16589327040.

The previous prime is 68776650673. The next prime is 68776650713. The reversal of 68776650690 is 9605667786.

It is a super-2 number, since 2×68776650690² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 457984 + ... + 589323.

It is an arithmetic number, because the mean of its divisors is an integer number (2827731600).

Almost surely, 2^68776650690 is an apocalyptic number.

68776650690 is an abundant number, since it is smaller than the sum of its proper divisors (112198171710).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68776650690 is a wasteful number, since it uses less digits than its factorization.

68776650690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047527.

The product of its (nonzero) digits is 22861440, while the sum is 60.

The spelling of 68776650690 in words is "sixty-eight billion, seven hundred seventy-six million, six hundred fifty thousand, six hundred ninety".