77761362354701 has 2 divisors, whose sum is σ = 77761362354702. Its totient is φ = 77761362354700.

The previous prime is 77761362354691. The next prime is 77761362354773. The reversal of 77761362354701 is 10745326316777.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 47808443353225 + 29952919001476 = 6914365^2 + 5472926^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77761362354701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77761361354701) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38880681177350 + 38880681177351.

It is an arithmetic number, because the mean of its divisors is an integer number (38880681177351).

Almost surely, 2^{77761362354701} is an apocalyptic number.

It is an amenable number.

77761362354701 is a deficient number, since it is larger than the sum of its proper divisors (1).

77761362354701 is an equidigital number, since it uses as much as digits as its factorization.

77761362354701 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 31116960, while the sum is 59.

The spelling of 77761362354701 in words is "seventy-seven trillion, seven hundred sixty-one billion, three hundred sixty-two million, three hundred fifty-four thousand, seven hundred one".