1979055077 has 2 divisors, whose sum is σ = 1979055078. Its totient is φ = 1979055076.

The previous prime is 1979055059. The next prime is 1979055083. The reversal of 1979055077 is 7705509791.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1690360996 + 288694081 = 41114^2 + 16991^2 .

It is a cyclic number.

It is not a de Polignac number, because 1979055077 - 2¹² = 1979050981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1979055037) 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, 989527538 + 989527539.

It is an arithmetic number, because the mean of its divisors is an integer number (989527539).

Almost surely, 2^1979055077 is an apocalyptic number.

It is an amenable number.

1979055077 is a deficient number, since it is larger than the sum of its proper divisors (1).

1979055077 is an equidigital number, since it uses as much as digits as its factorization.

1979055077 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 694575, while the sum is 50.

The square root of 1979055077 is about 44486.5718728697. The cubic root of 1979055077 is about 1255.5074485308.

The spelling of 1979055077 in words is "one billion, nine hundred seventy-nine million, fifty-five thousand, seventy-seven".