290635572673 has 2 divisors, whose sum is σ = 290635572674. Its totient is φ = 290635572672.

The previous prime is 290635572611. The next prime is 290635572677. The reversal of 290635572673 is 376275536092.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 161404669504 + 129230903169 = 401752^2 + 359487^2 .

It is a cyclic number.

It is not a de Polignac number, because 290635572673 - 2²⁵ = 290602018241 is a prime.

It is a super-2 number, since 2×290635572673² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (290635572677) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 145317786336 + 145317786337.

It is an arithmetic number, because the mean of its divisors is an integer number (145317786337).

Almost surely, 2^290635572673 is an apocalyptic number.

It is an amenable number.

290635572673 is a deficient number, since it is larger than the sum of its proper divisors (1).

290635572673 is an equidigital number, since it uses as much as digits as its factorization.

290635572673 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 14288400, while the sum is 55.

The spelling of 290635572673 in words is "two hundred ninety billion, six hundred thirty-five million, five hundred seventy-two thousand, six hundred seventy-three".