248578028999 has 2 divisors, whose sum is σ = 248578029000. Its totient is φ = 248578028998.

The previous prime is 248578028939. The next prime is 248578029013. The reversal of 248578028999 is 999820875842.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-248578028999 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248578028939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124289014499 + 124289014500.

It is an arithmetic number, because the mean of its divisors is an integer number (124289014500).

Almost surely, 2^248578028999 is an apocalyptic number.

248578028999 is a deficient number, since it is larger than the sum of its proper divisors (1).

248578028999 is an equidigital number, since it uses as much as digits as its factorization.

248578028999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 209018880, while the sum is 71.

The spelling of 248578028999 in words is "two hundred forty-eight billion, five hundred seventy-eight million, twenty-eight thousand, nine hundred ninety-nine".