196124093881 has 9 divisors (see below), whose sum is σ = 203133499023. Its totient is φ = 189348794040.

The previous prime is 196124093777. The next prime is 196124093887. The reversal of 196124093881 is 188390421691.

The square root of 196124093881 is 442859.

It is a perfect power (a square), and thus also a powerful number.

It can be written as a sum of positive squares in only one way, i.e., 102842717481 + 93281376400 = 320691^2 + 305420^2 .

It is not a de Polignac number, because 196124093881 - 2²³ = 196115705273 is a prime.

It is a super-2 number, since 2×196124093881² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (196124093887) by changing a digit.

It is a polite number, since it can be written in 8 ways as a sum of consecutive naturals, for example, 12835276 + ... + 12850546.

Almost surely, 2^196124093881 is an apocalyptic number.

196124093881 is the 442859-th square number.

196124093881 is the 221430-th centered octagonal number.

It is an amenable number.

196124093881 is a deficient number, since it is larger than the sum of its proper divisors (7009405142).

196124093881 is an frugal number, since it uses more digits than its factorization.

196124093881 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30600 (or 15300 counting only the distinct ones).

The product of its (nonzero) digits is 746496, while the sum is 52.

The spelling of 196124093881 in words is "one hundred ninety-six billion, one hundred twenty-four million, ninety-three thousand, eight hundred eighty-one".