67959394009 has 12 divisors (see below), whose sum is σ = 77241728676. Its totient is φ = 59430073248.

The previous prime is 67959393979. The next prime is 67959394037. The reversal of 67959394009 is 90049395976.

It can be written as a sum of positive squares in 2 ways, for example, as 34585584784 + 33373809225 = 185972^2 + 182685^2 .

It is not a de Polignac number, because 67959394009 - 2¹³ = 67959385817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (67959394039) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 7235814 + ... + 7245199.

It is an arithmetic number, because the mean of its divisors is an integer number (6436810723).

Almost surely, 2^67959394009 is an apocalyptic number.

It is an amenable number.

67959394009 is a deficient number, since it is larger than the sum of its proper divisors (9282334667).

67959394009 is a wasteful number, since it uses less digits than its factorization.

67959394009 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14481064 (or 14481045 counting only the distinct ones).

The product of its (nonzero) digits is 16533720, while the sum is 61.

The spelling of 67959394009 in words is "sixty-seven billion, nine hundred fifty-nine million, three hundred ninety-four thousand, nine".