2642122039 has 4 divisors (see below), whose sum is σ = 2655534024. Its totient is φ = 2628710056.

The previous prime is 2642122009. The next prime is 2642122073. The reversal of 2642122039 is 9302212462.

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

It is a cyclic number.

It is not a de Polignac number, because 2642122039 - 2²⁵ = 2608567607 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2642122039.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2642122009) 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, 6705697 + ... + 6706090.

It is an arithmetic number, because the mean of its divisors is an integer number (663883506).

Almost surely, 2^2642122039 is an apocalyptic number.

2642122039 is a deficient number, since it is larger than the sum of its proper divisors (13411985).

2642122039 is a wasteful number, since it uses less digits than its factorization.

2642122039 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13411984.

The product of its (nonzero) digits is 10368, while the sum is 31.

The square root of 2642122039 is about 51401.5762306955. The cubic root of 2642122039 is about 1382.4548545961.

The spelling of 2642122039 in words is "two billion, six hundred forty-two million, one hundred twenty-two thousand, thirty-nine".