128492244379 has 16 divisors (see below), whose sum is σ = 134678992896. Its totient is φ = 122447044800.

The previous prime is 128492244373. The next prime is 128492244401. The reversal of 128492244379 is 973442294821.

It is a cyclic number.

It is not a de Polignac number, because 128492244379 - 2³ = 128492244371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (128492244371) 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, 437959 + ... + 669919.

It is an arithmetic number, because the mean of its divisors is an integer number (8417437056).

Almost surely, 2^128492244379 is an apocalyptic number.

128492244379 is a deficient number, since it is larger than the sum of its proper divisors (6186748517).

128492244379 is a wasteful number, since it uses less digits than its factorization.

128492244379 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 232266.

The product of its digits is 6967296, while the sum is 55.

The spelling of 128492244379 in words is "one hundred twenty-eight billion, four hundred ninety-two million, two hundred forty-four thousand, three hundred seventy-nine".