196493918125 has 10 divisors (see below), whose sum is σ = 245538800870. Its totient is φ = 157195134000.

The previous prime is 196493918111. The next prime is 196493918143. The reversal of 196493918125 is 521819394691.

It can be written as a sum of positive squares in 5 ways, for example, as 72125547844 + 124368370281 = 268562^2 + 352659^2 .

It is not a de Polignac number, because 196493918125 - 2¹³ = 196493909933 is a prime.

It is a super-2 number, since 2×196493918125² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 196493918125.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 157194510 + ... + 157195759.

It is an arithmetic number, because the mean of its divisors is an integer number (24553880087).

Almost surely, 2^196493918125 is an apocalyptic number.

It is an amenable number.

196493918125 is a deficient number, since it is larger than the sum of its proper divisors (49044882745).

196493918125 is an frugal number, since it uses more digits than its factorization.

196493918125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 314390289 (or 314390274 counting only the distinct ones).

The product of its digits is 4199040, while the sum is 58.

The spelling of 196493918125 in words is "one hundred ninety-six billion, four hundred ninety-three million, nine hundred eighteen thousand, one hundred twenty-five".