1235948039839 has 2 divisors, whose sum is σ = 1235948039840. Its totient is φ = 1235948039838.

The previous prime is 1235948039761. The next prime is 1235948039857. The reversal of 1235948039839 is 9389308495321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1235948039839 - 2³⁵ = 1201588301471 is a prime.

It is a super-2 number, since 2×1235948039839² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1235948039869) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617974019919 + 617974019920.

It is an arithmetic number, because the mean of its divisors is an integer number (617974019920).

Almost surely, 2^{1235948039839} is an apocalyptic number.

1235948039839 is a deficient number, since it is larger than the sum of its proper divisors (1).

1235948039839 is an equidigital number, since it uses as much as digits as its factorization.

1235948039839 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 50388480, while the sum is 64.

The spelling of 1235948039839 in words is "one trillion, two hundred thirty-five billion, nine hundred forty-eight million, thirty-nine thousand, eight hundred thirty-nine".