48779877977 has 2 divisors, whose sum is σ = 48779877978. Its totient is φ = 48779877976.

The previous prime is 48779877967. The next prime is 48779878009. The reversal of 48779877977 is 77977897784.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 48232505161 + 547372816 = 219619^2 + 23396^2 .

It is a cyclic number.

It is not a de Polignac number, because 48779877977 - 2¹⁰ = 48779876953 is a prime.

It is a super-2 number, since 2×48779877977² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (48779877917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 24389938988 + 24389938989.

It is an arithmetic number, because the mean of its divisors is an integer number (24389938989).

Almost surely, 2^48779877977 is an apocalyptic number.

It is an amenable number.

48779877977 is a deficient number, since it is larger than the sum of its proper divisors (1).

48779877977 is an equidigital number, since it uses as much as digits as its factorization.

48779877977 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2439569664, while the sum is 80.

The spelling of 48779877977 in words is "forty-eight billion, seven hundred seventy-nine million, eight hundred seventy-seven thousand, nine hundred seventy-seven".