18476486837 has 2 divisors, whose sum is σ = 18476486838. Its totient is φ = 18476486836.

The previous prime is 18476486761. The next prime is 18476486843. The reversal of 18476486837 is 73868467481.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 16271808721 + 2204678116 = 127561^2 + 46954^2 .

It is a cyclic number.

It is not a de Polignac number, because 18476486837 - 2¹⁸ = 18476224693 is a prime.

It is a super-3 number, since 3×18476486837³ (a number of 32 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 18476486837.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (18476416837) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 9238243418 + 9238243419.

It is an arithmetic number, because the mean of its divisors is an integer number (9238243419).

Almost surely, 2^18476486837 is an apocalyptic number.

It is an amenable number.

18476486837 is a deficient number, since it is larger than the sum of its proper divisors (1).

18476486837 is an equidigital number, since it uses as much as digits as its factorization.

18476486837 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 43352064, while the sum is 62.

The spelling of 18476486837 in words is "eighteen billion, four hundred seventy-six million, four hundred eighty-six thousand, eight hundred thirty-seven".