120777657215843 has 2 divisors, whose sum is σ = 120777657215844. Its totient is φ = 120777657215842.

The previous prime is 120777657215741. The next prime is 120777657215869. The reversal of 120777657215843 is 348512756777021.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 120777657215843 - 2²⁴ = 120777640438627 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 120777657215843.

It is not a weakly prime, because it can be changed into another prime (120777657215543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60388828607921 + 60388828607922.

It is an arithmetic number, because the mean of its divisors is an integer number (60388828607922).

Almost surely, 2^{120777657215843} is an apocalyptic number.

120777657215843 is a deficient number, since it is larger than the sum of its proper divisors (1).

120777657215843 is an equidigital number, since it uses as much as digits as its factorization.

120777657215843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 138297600, while the sum is 65.

The spelling of 120777657215843 in words is "one hundred twenty trillion, seven hundred seventy-seven billion, six hundred fifty-seven million, two hundred fifteen thousand, eight hundred forty-three".