128057529677 has 48 divisors (see below), whose sum is σ = 174700385280. Its totient is φ = 92521548000.

The previous prime is 128057529641. The next prime is 128057529713. The reversal of 128057529677 is 776925750821.

It is an interprime number because it is at equal distance from previous prime (128057529641) and next prime (128057529713).

It is not a de Polignac number, because 128057529677 - 2²² = 128053335373 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128057529077) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 348302 + ... + 614352.

It is an arithmetic number, because the mean of its divisors is an integer number (3639591360).

Almost surely, 2^128057529677 is an apocalyptic number.

It is an amenable number.

128057529677 is a deficient number, since it is larger than the sum of its proper divisors (46642855603).

128057529677 is a wasteful number, since it uses less digits than its factorization.

128057529677 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 266142 (or 266135 counting only the distinct ones).

The product of its (nonzero) digits is 14817600, while the sum is 59.

The spelling of 128057529677 in words is "one hundred twenty-eight billion, fifty-seven million, five hundred twenty-nine thousand, six hundred seventy-seven".