122471870039 has 4 divisors (see below), whose sum is σ = 122577178056. Its totient is φ = 122366562024.

The previous prime is 122471870009. The next prime is 122471870071. The reversal of 122471870039 is 930078174221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-122471870039 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 (122471870009) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 52652264 + ... + 52654589.

It is an arithmetic number, because the mean of its divisors is an integer number (30644294514).

Almost surely, 2^122471870039 is an apocalyptic number.

122471870039 is a deficient number, since it is larger than the sum of its proper divisors (105308017).

122471870039 is a wasteful number, since it uses less digits than its factorization.

122471870039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105308016.

The product of its (nonzero) digits is 169344, while the sum is 44.

The spelling of 122471870039 in words is "one hundred twenty-two billion, four hundred seventy-one million, eight hundred seventy thousand, thirty-nine".