77982419029 has 2 divisors, whose sum is σ = 77982419030. Its totient is φ = 77982419028.

The previous prime is 77982418991. The next prime is 77982419089. The reversal of 77982419029 is 92091428977.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 55706856529 + 22275562500 = 236023^2 + 149250^2 .

It is a cyclic number.

It is not a de Polignac number, because 77982419029 - 2⁷ = 77982418901 is a prime.

It is a super-2 number, since 2×77982419029² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77982419089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38991209514 + 38991209515.

It is an arithmetic number, because the mean of its divisors is an integer number (38991209515).

Almost surely, 2^77982419029 is an apocalyptic number.

It is an amenable number.

77982419029 is a deficient number, since it is larger than the sum of its proper divisors (1).

77982419029 is an equidigital number, since it uses as much as digits as its factorization.

77982419029 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4572288, while the sum is 58.

The spelling of 77982419029 in words is "seventy-seven billion, nine hundred eighty-two million, four hundred nineteen thousand, twenty-nine".