128277870482641 has 16 divisors (see below), whose sum is σ = 145653123764160. Its totient is φ = 111904229142720.

The previous prime is 128277870482581. The next prime is 128277870482653. The reversal of 128277870482641 is 146284078772821.

It is a cyclic number.

It is not a de Polignac number, because 128277870482641 - 2¹¹ = 128277870480593 is a prime.

It is a super-2 number, since 2×128277870482641² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128277870402641) 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, 1233460230 + ... + 1233564223.

It is an arithmetic number, because the mean of its divisors is an integer number (9103320235260).

Almost surely, 2^{128277870482641} is an apocalyptic number.

128277870482641 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

128277870482641 is a deficient number, since it is larger than the sum of its proper divisors (17375253281519).

128277870482641 is a wasteful number, since it uses less digits than its factorization.

128277870482641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2467024656.

The product of its (nonzero) digits is 134873088, while the sum is 67.

The spelling of 128277870482641 in words is "one hundred twenty-eight trillion, two hundred seventy-seven billion, eight hundred seventy million, four hundred eighty-two thousand, six hundred forty-one".