196987500406 has 4 divisors (see below), whose sum is σ = 295481250612. Its totient is φ = 98493750202.

The previous prime is 196987500397. The next prime is 196987500419. The reversal of 196987500406 is 604005789691.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 49246875100 + ... + 49246875103.

It is an arithmetic number, because the mean of its divisors is an integer number (73870312653).

Almost surely, 2^196987500406 is an apocalyptic number.

196987500406 is a deficient number, since it is larger than the sum of its proper divisors (98493750206).

196987500406 is an equidigital number, since it uses as much as digits as its factorization.

196987500406 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98493750205.

The product of its (nonzero) digits is 3265920, while the sum is 55.

The spelling of 196987500406 in words is "one hundred ninety-six billion, nine hundred eighty-seven million, five hundred thousand, four hundred six".