77501521541141 has 2 divisors, whose sum is σ = 77501521541142. Its totient is φ = 77501521541140.

The previous prime is 77501521541107. The next prime is 77501521541179. The reversal of 77501521541141 is 14114512510577.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 53150602878916 + 24350918662225 = 7290446^2 + 4934665^2 .

It is a cyclic number.

It is not a de Polignac number, because 77501521541141 - 2¹⁰ = 77501521540117 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 77501521541092 and 77501521541101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (77501521541341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 38750760770570 + 38750760770571.

It is an arithmetic number, because the mean of its divisors is an integer number (38750760770571).

Almost surely, 2^{77501521541141} is an apocalyptic number.

It is an amenable number.

77501521541141 is a deficient number, since it is larger than the sum of its proper divisors (1).

77501521541141 is an equidigital number, since it uses as much as digits as its factorization.

77501521541141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 196000, while the sum is 44.

The spelling of 77501521541141 in words is "seventy-seven trillion, five hundred one billion, five hundred twenty-one million, five hundred forty-one thousand, one hundred forty-one".