67577280881617 has 16 divisors (see below), whose sum is σ = 73391142307840. Its totient is φ = 61851933787392.

The previous prime is 67577280881609. The next prime is 67577280881699. The reversal of 67577280881617 is 71618808277576.

It is a cyclic number.

It is not a de Polignac number, because 67577280881617 - 2³ = 67577280881609 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 67577280881617.

It is not an unprimeable number, because it can be changed into a prime (67577280281617) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9033192 + ... + 14722537.

It is an arithmetic number, because the mean of its divisors is an integer number (4586946394240).

Almost surely, 2^{67577280881617} is an apocalyptic number.

It is an amenable number.

67577280881617 is a deficient number, since it is larger than the sum of its proper divisors (5813861426223).

67577280881617 is a wasteful number, since it uses less digits than its factorization.

67577280881617 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23757592.

The product of its (nonzero) digits is 442552320, while the sum is 73.

The spelling of 67577280881617 in words is "sixty-seven trillion, five hundred seventy-seven billion, two hundred eighty million, eight hundred eighty-one thousand, six hundred seventeen".