196121289057 has 8 divisors (see below), whose sum is σ = 261538021920. Its totient is φ = 130726041120.

The previous prime is 196121289043. The next prime is 196121289079. The reversal of 196121289057 is 750982121691.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 196121289057 - 2⁷ = 196121288929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (196121289037) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5349919 + ... + 5386452.

It is an arithmetic number, because the mean of its divisors is an integer number (32692252740).

Almost surely, 2^196121289057 is an apocalyptic number.

It is an amenable number.

196121289057 is a deficient number, since it is larger than the sum of its proper divisors (65416732863).

196121289057 is a wasteful number, since it uses less digits than its factorization.

196121289057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10742463.

The product of its (nonzero) digits is 544320, while the sum is 51.

The spelling of 196121289057 in words is "one hundred ninety-six billion, one hundred twenty-one million, two hundred eighty-nine thousand, fifty-seven".