128570689551 has 16 divisors (see below), whose sum is σ = 174690069120. Its totient is φ = 84083070240.

The previous prime is 128570689487. The next prime is 128570689553. The reversal of 128570689551 is 155986075821.

It is not a de Polignac number, because 128570689551 - 2⁶ = 128570689487 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 128570689491 and 128570689500.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128570689553) 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, 983260 + ... + 1106318.

It is an arithmetic number, because the mean of its divisors is an integer number (10918129320).

Almost surely, 2^128570689551 is an apocalyptic number.

128570689551 is a deficient number, since it is larger than the sum of its proper divisors (46119379569).

128570689551 is a wasteful number, since it uses less digits than its factorization.

128570689551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129686.

The product of its (nonzero) digits is 6048000, while the sum is 57.

The spelling of 128570689551 in words is "one hundred twenty-eight billion, five hundred seventy million, six hundred eighty-nine thousand, five hundred fifty-one".