77019906763 has 2 divisors, whose sum is σ = 77019906764. Its totient is φ = 77019906762.

The previous prime is 77019906739. The next prime is 77019906797. The reversal of 77019906763 is 36760991077.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (36760991077) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77019906763 is a prime.

It is a super-5 number, since 5×77019906763⁵ (a number of 56 digits) contains 55555 as substring.

It is not a weakly prime, because it can be changed into another prime (77019906713) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38509953381 + 38509953382.

It is an arithmetic number, because the mean of its divisors is an integer number (38509953382).

Almost surely, 2^77019906763 is an apocalyptic number.

77019906763 is a deficient number, since it is larger than the sum of its proper divisors (1).

77019906763 is an equidigital number, since it uses as much as digits as its factorization.

77019906763 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3000564, while the sum is 55.

The spelling of 77019906763 in words is "seventy-seven billion, nineteen million, nine hundred six thousand, seven hundred sixty-three".