7122421439 has 16 divisors (see below), whose sum is σ = 8633495808. Its totient is φ = 5735974272.

The previous prime is 7122421421. The next prime is 7122421447. The reversal of 7122421439 is 9341242217.

It is not a de Polignac number, because 7122421439 - 2³² = 2827454143 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7122421399 and 7122421408.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7122421459) 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, 18872 + ... + 120834.

It is an arithmetic number, because the mean of its divisors is an integer number (539593488).

Almost surely, 2^7122421439 is an apocalyptic number.

7122421439 is a deficient number, since it is larger than the sum of its proper divisors (1511074369).

7122421439 is a wasteful number, since it uses less digits than its factorization.

7122421439 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102574.

The product of its digits is 24192, while the sum is 35.

The square root of 7122421439 is about 84394.4396213400. The cubic root of 7122421439 is about 1924.0184067543.

The spelling of 7122421439 in words is "seven billion, one hundred twenty-two million, four hundred twenty-one thousand, four hundred thirty-nine".