4392139451 has 6 divisors (see below), whose sum is σ = 5109223500. Its totient is φ = 3764690916.

The previous prime is 4392139447. The next prime is 4392139459. The reversal of 4392139451 is 1549312934.

4392139451 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 4392139451 - 2² = 4392139447 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4392139399 and 4392139408.

It is not an unprimeable number, because it can be changed into a prime (4392139459) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 44817701 + ... + 44817798.

It is an arithmetic number, because the mean of its divisors is an integer number (851537250).

Almost surely, 2^4392139451 is an apocalyptic number.

4392139451 is a deficient number, since it is larger than the sum of its proper divisors (717084049).

4392139451 is an equidigital number, since it uses as much as digits as its factorization.

4392139451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 89635513 (or 89635506 counting only the distinct ones).

The product of its digits is 116640, while the sum is 41.

The square root of 4392139451 is about 66273.2182031324. The cubic root of 4392139451 is about 1637.6661542334. Note that the first 3 decimals are identical.

The spelling of 4392139451 in words is "four billion, three hundred ninety-two million, one hundred thirty-nine thousand, four hundred fifty-one".