82162783961 has 2 divisors, whose sum is σ = 82162783962. Its totient is φ = 82162783960.

The previous prime is 82162783949. The next prime is 82162784023. The reversal of 82162783961 is 16938726128.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 80792377600 + 1370406361 = 284240^2 + 37019^2 .

It is a cyclic number.

It is not a de Polignac number, because 82162783961 - 2¹⁰ = 82162782937 is a prime.

It is not a weakly prime, because it can be changed into another prime (82162783061) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 41081391980 + 41081391981.

It is an arithmetic number, because the mean of its divisors is an integer number (41081391981).

Almost surely, 2^82162783961 is an apocalyptic number.

It is an amenable number.

82162783961 is a deficient number, since it is larger than the sum of its proper divisors (1).

82162783961 is an equidigital number, since it uses as much as digits as its factorization.

82162783961 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1741824, while the sum is 53.

The spelling of 82162783961 in words is "eighty-two billion, one hundred sixty-two million, seven hundred eighty-three thousand, nine hundred sixty-one".