18756462061 has 2 divisors, whose sum is σ = 18756462062. Its totient is φ = 18756462060.

The previous prime is 18756462041. The next prime is 18756462089. The reversal of 18756462061 is 16026465781.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 14759820100 + 3996641961 = 121490^2 + 63219^2 .

It is a cyclic number.

It is not a de Polignac number, because 18756462061 - 2¹¹ = 18756460013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18756462041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9378231030 + 9378231031.

It is an arithmetic number, because the mean of its divisors is an integer number (9378231031).

Almost surely, 2^18756462061 is an apocalyptic number.

It is an amenable number.

18756462061 is a deficient number, since it is larger than the sum of its proper divisors (1).

18756462061 is an equidigital number, since it uses as much as digits as its factorization.

18756462061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 46.

The spelling of 18756462061 in words is "eighteen billion, seven hundred fifty-six million, four hundred sixty-two thousand, sixty-one".