7123948539 has 16 divisors (see below), whose sum is σ = 9924678144. Its totient is φ = 4536804800.

The previous prime is 7123948471. The next prime is 7123948567. The reversal of 7123948539 is 9358493217.

It is a cyclic number.

It is not a de Polignac number, because 7123948539 - 2⁸ = 7123948283 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 7123948491 and 7123948500.

It is not an unprimeable number, because it can be changed into a prime (7123944539) 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, 15327 + ... + 120344.

It is an arithmetic number, because the mean of its divisors is an integer number (620292384).

Almost surely, 2^7123948539 is an apocalyptic number.

7123948539 is a deficient number, since it is larger than the sum of its proper divisors (2800729605).

7123948539 is a wasteful number, since it uses less digits than its factorization.

7123948539 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136458.

The product of its digits is 1632960, while the sum is 51.

The square root of 7123948539 is about 84403.4865334365. The cubic root of 7123948539 is about 1924.1559048684.

The spelling of 7123948539 in words is "seven billion, one hundred twenty-three million, nine hundred forty-eight thousand, five hundred thirty-nine".