77467965461 has 2 divisors, whose sum is σ = 77467965462. Its totient is φ = 77467965460.

The previous prime is 77467965451. The next prime is 77467965481. The reversal of 77467965461 is 16456976477.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77342391025 + 125574436 = 278105^2 + 11206^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77467965461 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 77467965394 and 77467965403.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77467965451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38733982730 + 38733982731.

It is an arithmetic number, because the mean of its divisors is an integer number (38733982731).

Almost surely, 2^77467965461 is an apocalyptic number.

It is an amenable number.

77467965461 is a deficient number, since it is larger than the sum of its proper divisors (1).

77467965461 is an equidigital number, since it uses as much as digits as its factorization.

77467965461 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 53343360, while the sum is 62.

The spelling of 77467965461 in words is "seventy-seven billion, four hundred sixty-seven million, nine hundred sixty-five thousand, four hundred sixty-one".