128690519110 has 16 divisors (see below), whose sum is σ = 237029980176. Its totient is φ = 50279086368.

The previous prime is 128690519107. The next prime is 128690519117. The reversal of 128690519110 is 11915096821.

It is a super-2 number, since 2×128690519110² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (128690519117) 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, 149639709 + ... + 149640568.

It is an arithmetic number, because the mean of its divisors is an integer number (14814373761).

Almost surely, 2^128690519110 is an apocalyptic number.

128690519110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

128690519110 is a deficient number, since it is larger than the sum of its proper divisors (108339461066).

128690519110 is a wasteful number, since it uses less digits than its factorization.

128690519110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299280327.

The product of its (nonzero) digits is 38880, while the sum is 43.

The spelling of 128690519110 in words is "one hundred twenty-eight billion, six hundred ninety million, five hundred nineteen thousand, one hundred ten".