248705942999 has 2 divisors, whose sum is σ = 248705943000. Its totient is φ = 248705942998.

The previous prime is 248705942993. The next prime is 248705943049. The reversal of 248705942999 is 999249507842.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 248705942999 - 2⁴ = 248705942983 is a prime.

It is a super-2 number, since 2×248705942999² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (248705942993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124352971499 + 124352971500.

It is an arithmetic number, because the mean of its divisors is an integer number (124352971500).

Almost surely, 2^248705942999 is an apocalyptic number.

248705942999 is a deficient number, since it is larger than the sum of its proper divisors (1).

248705942999 is an equidigital number, since it uses as much as digits as its factorization.

248705942999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 117573120, while the sum is 68.

The spelling of 248705942999 in words is "two hundred forty-eight billion, seven hundred five million, nine hundred forty-two thousand, nine hundred ninety-nine".