122438879509 has 8 divisors (see below), whose sum is σ = 123923685312. Its totient is φ = 120954303360.

The previous prime is 122438879503. The next prime is 122438879579. The reversal of 122438879509 is 905978834221.

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

It is a cyclic number.

It is not a de Polignac number, because 122438879509 - 2³ = 122438879501 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (122438879501) 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, 1174504 + ... + 1274494.

It is an arithmetic number, because the mean of its divisors is an integer number (15490460664).

Almost surely, 2^122438879509 is an apocalyptic number.

It is an amenable number.

122438879509 is a deficient number, since it is larger than the sum of its proper divisors (1484805803).

122438879509 is an equidigital number, since it uses as much as digits as its factorization.

122438879509 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114827.

The product of its (nonzero) digits is 8709120, while the sum is 58.

The spelling of 122438879509 in words is "one hundred twenty-two billion, four hundred thirty-eight million, eight hundred seventy-nine thousand, five hundred nine".