128277874268611 has 8 divisors (see below), whose sum is σ = 135033337316880. Its totient is φ = 121522810818528.

The previous prime is 128277874268587. The next prime is 128277874268651. The reversal of 128277874268611 is 116862478772821.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-128277874268611 is a prime.

It is not an unprimeable number, because it can be changed into a prime (128277874268651) 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, 99240496 + ... + 100524781.

It is an arithmetic number, because the mean of its divisors is an integer number (16879167164610).

Almost surely, 2^{128277874268611} is an apocalyptic number.

128277874268611 is a deficient number, since it is larger than the sum of its proper divisors (6755463048269).

128277874268611 is a wasteful number, since it uses less digits than its factorization.

128277874268611 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199799093.

The product of its digits is 202309632, while the sum is 70.

The spelling of 128277874268611 in words is "one hundred twenty-eight trillion, two hundred seventy-seven billion, eight hundred seventy-four million, two hundred sixty-eight thousand, six hundred eleven".