77734617555041 has 2 divisors, whose sum is σ = 77734617555042. Its totient is φ = 77734617555040.

The previous prime is 77734617555031. The next prime is 77734617555073. The reversal of 77734617555041 is 14055571643777.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 77391079728400 + 343537826641 = 8797220^2 + 586121^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-77734617555041 is a prime.

It is not a weakly prime, because it can be changed into another prime (77734617555031) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38867308777520 + 38867308777521.

It is an arithmetic number, because the mean of its divisors is an integer number (38867308777521).

Almost surely, 2^{77734617555041} is an apocalyptic number.

It is an amenable number.

77734617555041 is a deficient number, since it is larger than the sum of its proper divisors (1).

77734617555041 is an equidigital number, since it uses as much as digits as its factorization.

77734617555041 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 86436000, while the sum is 62.

The spelling of 77734617555041 in words is "seventy-seven trillion, seven hundred thirty-four billion, six hundred seventeen million, five hundred fifty-five thousand, forty-one".