36285481261 has 2 divisors, whose sum is σ = 36285481262. Its totient is φ = 36285481260.

The previous prime is 36285481247. The next prime is 36285481273. The reversal of 36285481261 is 16218458263.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20842696900 + 15442784361 = 144370^2 + 124269^2 .

It is a cyclic number.

It is not a de Polignac number, because 36285481261 - 2³¹ = 34137997613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (36285481961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 18142740630 + 18142740631.

It is an arithmetic number, because the mean of its divisors is an integer number (18142740631).

Almost surely, 2^36285481261 is an apocalyptic number.

It is an amenable number.

36285481261 is a deficient number, since it is larger than the sum of its proper divisors (1).

36285481261 is an equidigital number, since it uses as much as digits as its factorization.

36285481261 is an evil number, because the sum of its binary digits is even.

The product of its digits is 552960, while the sum is 46.

The spelling of 36285481261 in words is "thirty-six billion, two hundred eighty-five million, four hundred eighty-one thousand, two hundred sixty-one".