285928230961 has 2 divisors, whose sum is σ = 285928230962. Its totient is φ = 285928230960.

The previous prime is 285928230943. The next prime is 285928230971. The reversal of 285928230961 is 169032829582.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 186848707600 + 99079523361 = 432260^2 + 314769^2 .

It is a cyclic number.

It is not a de Polignac number, because 285928230961 - 2²³ = 285919842353 is a prime.

It is not a weakly prime, because it can be changed into another prime (285928230941) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 142964115480 + 142964115481.

It is an arithmetic number, because the mean of its divisors is an integer number (142964115481).

Almost surely, 2^285928230961 is an apocalyptic number.

It is an amenable number.

285928230961 is a deficient number, since it is larger than the sum of its proper divisors (1).

285928230961 is an equidigital number, since it uses as much as digits as its factorization.

285928230961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3732480, while the sum is 55.

The spelling of 285928230961 in words is "two hundred eighty-five billion, nine hundred twenty-eight million, two hundred thirty thousand, nine hundred sixty-one".