74320280249 has 2 divisors, whose sum is σ = 74320280250. Its totient is φ = 74320280248.

The previous prime is 74320280233. The next prime is 74320280269. The reversal of 74320280249 is 94208202347.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73698675625 + 621604624 = 271475^2 + 24932^2 .

It is a cyclic number.

It is not a de Polignac number, because 74320280249 - 2⁴ = 74320280233 is a prime.

It is not a weakly prime, because it can be changed into another prime (74320280219) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 37160140124 + 37160140125.

It is an arithmetic number, because the mean of its divisors is an integer number (37160140125).

Almost surely, 2^74320280249 is an apocalyptic number.

It is an amenable number.

74320280249 is a deficient number, since it is larger than the sum of its proper divisors (1).

74320280249 is an equidigital number, since it uses as much as digits as its factorization.

74320280249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 41.

The spelling of 74320280249 in words is "seventy-four billion, three hundred twenty million, two hundred eighty thousand, two hundred forty-nine".