249788019983 has 2 divisors, whose sum is σ = 249788019984. Its totient is φ = 249788019982.

The previous prime is 249788019973. The next prime is 249788020007. The reversal of 249788019983 is 389910887942.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 249788019983 - 2⁶ = 249788019919 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (249788019973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 124894009991 + 124894009992.

It is an arithmetic number, because the mean of its divisors is an integer number (124894009992).

Almost surely, 2^249788019983 is an apocalyptic number.

249788019983 is a deficient number, since it is larger than the sum of its proper divisors (1).

249788019983 is an equidigital number, since it uses as much as digits as its factorization.

249788019983 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 62705664, while the sum is 68.

The spelling of 249788019983 in words is "two hundred forty-nine billion, seven hundred eighty-eight million, nineteen thousand, nine hundred eighty-three".