118956157979777 has 2 divisors, whose sum is σ = 118956157979778. Its totient is φ = 118956157979776.

The previous prime is 118956157979629. The next prime is 118956157979833. The reversal of 118956157979777 is 777979751659811.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109571989616896 + 9384168362881 = 10467664^2 + 3063359^2 .

It is a cyclic number.

It is not a de Polignac number, because 118956157979777 - 2²² = 118956153785473 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 118956157979692 and 118956157979701.

It is not a weakly prime, because it can be changed into another prime (118956157979977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 59478078989888 + 59478078989889.

It is an arithmetic number, because the mean of its divisors is an integer number (59478078989889).

Almost surely, 2^{118956157979777} is an apocalyptic number.

It is an amenable number.

118956157979777 is a deficient number, since it is larger than the sum of its proper divisors (1).

118956157979777 is an equidigital number, since it uses as much as digits as its factorization.

118956157979777 is an evil number, because the sum of its binary digits is even.

The product of its digits is 14702763600, while the sum is 89.

The spelling of 118956157979777 in words is "one hundred eighteen trillion, nine hundred fifty-six billion, one hundred fifty-seven million, nine hundred seventy-nine thousand, seven hundred seventy-seven".