60977774591977 has 2 divisors, whose sum is σ = 60977774591978. Its totient is φ = 60977774591976.

The previous prime is 60977774591879. The next prime is 60977774592017. The reversal of 60977774591977 is 77919547777906.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30919705181401 + 30058069410576 = 5560549^2 + 5482524^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-60977774591977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 60977774591894 and 60977774591903.

It is not a weakly prime, because it can be changed into another prime (60977774541977) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 30488887295988 + 30488887295989.

It is an arithmetic number, because the mean of its divisors is an integer number (30488887295989).

Almost surely, 2^{60977774591977} is an apocalyptic number.

It is an amenable number.

60977774591977 is a deficient number, since it is larger than the sum of its proper divisors (1).

60977774591977 is an equidigital number, since it uses as much as digits as its factorization.

60977774591977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10291934520, while the sum is 85.

The spelling of 60977774591977 in words is "sixty trillion, nine hundred seventy-seven billion, seven hundred seventy-four million, five hundred ninety-one thousand, nine hundred seventy-seven".