128992469435 has 8 divisors (see below), whose sum is σ = 154816247376. Its totient is φ = 103177119520.

The previous prime is 128992469407. The next prime is 128992469443. The reversal of 128992469435 is 534964299821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 128992469435 - 2¹⁰ = 128992468411 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2073284 + ... + 2134593.

It is an arithmetic number, because the mean of its divisors is an integer number (19352030922).

Almost surely, 2^128992469435 is an apocalyptic number.

128992469435 is a deficient number, since it is larger than the sum of its proper divisors (25823777941).

128992469435 is an equidigital number, since it uses as much as digits as its factorization.

128992469435 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214013.

The product of its digits is 33592320, while the sum is 62.

The spelling of 128992469435 in words is "one hundred twenty-eight billion, nine hundred ninety-two million, four hundred sixty-nine thousand, four hundred thirty-five".