247302953873 has 2 divisors, whose sum is σ = 247302953874. Its totient is φ = 247302953872.

The previous prime is 247302953791. The next prime is 247302953897. The reversal of 247302953873 is 378359203742.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 200581266769 + 46721687104 = 447863^2 + 216152^2 .

It is a cyclic number.

It is not a de Polignac number, because 247302953873 - 2⁸ = 247302953617 is a prime.

It is a super-2 number, since 2×247302953873² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (247302953173) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 123651476936 + 123651476937.

It is an arithmetic number, because the mean of its divisors is an integer number (123651476937).

Almost surely, 2^247302953873 is an apocalyptic number.

It is an amenable number.

247302953873 is a deficient number, since it is larger than the sum of its proper divisors (1).

247302953873 is an equidigital number, since it uses as much as digits as its factorization.

247302953873 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7620480, while the sum is 53.

The spelling of 247302953873 in words is "two hundred forty-seven billion, three hundred two million, nine hundred fifty-three thousand, eight hundred seventy-three".