196777411977 has 16 divisors (see below), whose sum is σ = 277996561920. Its totient is φ = 123382332672.

The previous prime is 196777411951. The next prime is 196777411979. The reversal of 196777411977 is 779114777691.

It is not a de Polignac number, because 196777411977 - 2⁷ = 196777411849 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196777411979) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1267258 + ... + 1414035.

It is an arithmetic number, because the mean of its divisors is an integer number (17374785120).

Almost surely, 2^196777411977 is an apocalyptic number.

196777411977 is a gapful number since it is divisible by the number (17) formed by its first and last digit.

It is an amenable number.

196777411977 is a deficient number, since it is larger than the sum of its proper divisors (81219149943).

196777411977 is a wasteful number, since it uses less digits than its factorization.

196777411977 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2682752.

The product of its digits is 32672808, while the sum is 66.

The spelling of 196777411977 in words is "one hundred ninety-six billion, seven hundred seventy-seven million, four hundred eleven thousand, nine hundred seventy-seven".