128077708577 has 8 divisors (see below), whose sum is σ = 157634102976. Its totient is φ = 101336208912.

The previous prime is 128077708559. The next prime is 128077708579. The reversal of 128077708577 is 775807770821.

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

It is a cyclic number.

It is not a de Polignac number, because 128077708577 - 2¹⁸ = 128077446433 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128077708579) 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, 703723583 + ... + 703723764.

It is an arithmetic number, because the mean of its divisors is an integer number (19704262872).

Almost surely, 2^128077708577 is an apocalyptic number.

It is an amenable number.

128077708577 is a deficient number, since it is larger than the sum of its proper divisors (29556394399).

128077708577 is a wasteful number, since it uses less digits than its factorization.

128077708577 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1407447367.

The product of its (nonzero) digits is 10756480, while the sum is 59.

The spelling of 128077708577 in words is "one hundred twenty-eight billion, seventy-seven million, seven hundred eight thousand, five hundred seventy-seven".