5398155823 has 2 divisors, whose sum is σ = 5398155824. Its totient is φ = 5398155822.

The previous prime is 5398155781. The next prime is 5398155863. The reversal of 5398155823 is 3285518935.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 5398155823 - 2²¹ = 5396058671 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5398155863) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2699077911 + 2699077912.

It is an arithmetic number, because the mean of its divisors is an integer number (2699077912).

Almost surely, 2^5398155823 is an apocalyptic number.

5398155823 is a deficient number, since it is larger than the sum of its proper divisors (1).

5398155823 is an equidigital number, since it uses as much as digits as its factorization.

5398155823 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1296000, while the sum is 49.

The square root of 5398155823 is about 73472.1431768531. The cubic root of 5398155823 is about 1754.2109014374.

The spelling of 5398155823 in words is "five billion, three hundred ninety-eight million, one hundred fifty-five thousand, eight hundred twenty-three".