196858424064 has 144 divisors (see below), whose sum is σ = 551039376384. Its totient is φ = 62304153600.

The previous prime is 196858423967. The next prime is 196858424069. The reversal of 196858424064 is 460424858691.

It is a junction number, because it is equal to n+sod(n) for n = 196858423995 and 196858424013.

It is not an unprimeable number, because it can be changed into a prime (196858424069) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1183819 + ... + 1339829.

It is an arithmetic number, because the mean of its divisors is an integer number (3826662336).

Almost surely, 2^196858424064 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 196858424064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (275519688192).

196858424064 is an abundant number, since it is smaller than the sum of its proper divisors (354180952320).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

196858424064 is a wasteful number, since it uses less digits than its factorization.

196858424064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156114 (or 156100 counting only the distinct ones).

The product of its (nonzero) digits is 13271040, while the sum is 57.

The spelling of 196858424064 in words is "one hundred ninety-six billion, eight hundred fifty-eight million, four hundred twenty-four thousand, sixty-four".