196388923077 has 12 divisors (see below), whose sum is σ = 284849957964. Its totient is φ = 130382686080.

The previous prime is 196388923069. The next prime is 196388923117. The reversal of 196388923077 is 770329883691.

196388923077 is a `hidden beast` number, since 19 + 6 + 388 + 9 + 230 + 7 + 7 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 173994099876 + 22394823201 = 417126^2 + 149649^2 .

It is not a de Polignac number, because 196388923077 - 2³ = 196388923069 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (196388923007) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45269598 + ... + 45273935.

It is an arithmetic number, because the mean of its divisors is an integer number (23737496497).

Almost surely, 2^196388923077 is an apocalyptic number.

It is an amenable number.

196388923077 is a deficient number, since it is larger than the sum of its proper divisors (88461034887).

196388923077 is a wasteful number, since it uses less digits than its factorization.

196388923077 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90543780 (or 90543777 counting only the distinct ones).

The product of its (nonzero) digits is 27433728, while the sum is 63.

The spelling of 196388923077 in words is "one hundred ninety-six billion, three hundred eighty-eight million, nine hundred twenty-three thousand, seventy-seven".