52139791243 has 2 divisors, whose sum is σ = 52139791244. Its totient is φ = 52139791242.

The previous prime is 52139791181. The next prime is 52139791259. The reversal of 52139791243 is 34219793125.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 52139791243 - 2¹⁷ = 52139660171 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 52139791193 and 52139791202.

It is not a weakly prime, because it can be changed into another prime (52139191243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26069895621 + 26069895622.

It is an arithmetic number, because the mean of its divisors is an integer number (26069895622).

Almost surely, 2^52139791243 is an apocalyptic number.

52139791243 is a deficient number, since it is larger than the sum of its proper divisors (1).

52139791243 is an equidigital number, since it uses as much as digits as its factorization.

52139791243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 408240, while the sum is 46.

The spelling of 52139791243 in words is "fifty-two billion, one hundred thirty-nine million, seven hundred ninety-one thousand, two hundred forty-three".