128832497986 has 8 divisors (see below), whose sum is σ = 194770391040. Its totient is φ = 63909034308.

The previous prime is 128832497977. The next prime is 128832498019. The reversal of 128832497986 is 689794238821.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 253607026 + ... + 253607533.

It is an arithmetic number, because the mean of its divisors is an integer number (24346298880).

Almost surely, 2^128832497986 is an apocalyptic number.

128832497986 is a deficient number, since it is larger than the sum of its proper divisors (65937893054).

128832497986 is a wasteful number, since it uses less digits than its factorization.

128832497986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 507214688.

The product of its digits is 83607552, while the sum is 67.

The spelling of 128832497986 in words is "one hundred twenty-eight billion, eight hundred thirty-two million, four hundred ninety-seven thousand, nine hundred eighty-six".