128351225146077 has 12 divisors (see below), whose sum is σ = 185454496509724. Its totient is φ = 85540583856960.

The previous prime is 128351225146069. The next prime is 128351225146093. The reversal of 128351225146077 is 770641522153821.

128351225146077 is a `hidden beast` number, since 1 + 2 + 8 + 3 + 5 + 1 + 2 + 25 + 1 + 4 + 607 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 74393885285721 + 53957339860356 = 8625189^2 + 7345566^2 .

It is not a de Polignac number, because 128351225146077 - 2³ = 128351225146069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128351225146007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2241600928 + ... + 2241658185.

Almost surely, 2^{128351225146077} is an apocalyptic number.

It is an amenable number.

128351225146077 is a deficient number, since it is larger than the sum of its proper divisors (57103271363647).

128351225146077 is a wasteful number, since it uses less digits than its factorization.

128351225146077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4483262300 (or 4483262297 counting only the distinct ones).

The product of its (nonzero) digits is 5644800, while the sum is 54.

Adding to 128351225146077 its reverse (770641522153821), we get a palindrome (898992747299898).

The spelling of 128351225146077 in words is "one hundred twenty-eight trillion, three hundred fifty-one billion, two hundred twenty-five million, one hundred forty-six thousand, seventy-seven".