288621952373 has 2 divisors, whose sum is σ = 288621952374. Its totient is φ = 288621952372.

The previous prime is 288621952369. The next prime is 288621952403. The reversal of 288621952373 is 373259126882.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 236189196049 + 52432756324 = 485993^2 + 228982^2 .

It is a cyclic number.

It is not a de Polignac number, because 288621952373 - 2² = 288621952369 is a prime.

It is a super-2 number, since 2×288621952373² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (288621952363) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 144310976186 + 144310976187.

It is an arithmetic number, because the mean of its divisors is an integer number (144310976187).

Almost surely, 2^288621952373 is an apocalyptic number.

It is an amenable number.

288621952373 is a deficient number, since it is larger than the sum of its proper divisors (1).

288621952373 is an equidigital number, since it uses as much as digits as its factorization.

288621952373 is an evil number, because the sum of its binary digits is even.

The product of its digits is 8709120, while the sum is 56.

The spelling of 288621952373 in words is "two hundred eighty-eight billion, six hundred twenty-one million, nine hundred fifty-two thousand, three hundred seventy-three".