16762977481 has 2 divisors, whose sum is σ = 16762977482. Its totient is φ = 16762977480.

The previous prime is 16762977467. The next prime is 16762977499. The reversal of 16762977481 is 18477926761.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 13949735881 + 2813241600 = 118109^2 + 53040^2 .

It is a cyclic number.

It is not a de Polignac number, because 16762977481 - 2⁷ = 16762977353 is a prime.

It is a super-2 number, since 2×16762977481² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (16762917481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8381488740 + 8381488741.

It is an arithmetic number, because the mean of its divisors is an integer number (8381488741).

Almost surely, 2^16762977481 is an apocalyptic number.

It is an amenable number.

16762977481 is a deficient number, since it is larger than the sum of its proper divisors (1).

16762977481 is an equidigital number, since it uses as much as digits as its factorization.

16762977481 is an evil number, because the sum of its binary digits is even.

The product of its digits is 7112448, while the sum is 58.

The spelling of 16762977481 in words is "sixteen billion, seven hundred sixty-two million, nine hundred seventy-seven thousand, four hundred eighty-one".