196921431404026 has 8 divisors (see below), whose sum is σ = 337579596692640. Its totient is φ = 84394899173148.

The previous prime is 196921431403999. The next prime is 196921431404053. The reversal of 196921431404026 is 620404134129691.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (196921431403999) and next prime (196921431404053).

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7032908264416 + ... + 7032908264443.

It is an arithmetic number, because the mean of its divisors is an integer number (42197449586580).

Almost surely, 2^{196921431404026} is an apocalyptic number.

196921431404026 is a deficient number, since it is larger than the sum of its proper divisors (140658165288614).

196921431404026 is a wasteful number, since it uses less digits than its factorization.

196921431404026 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14065816528868.

The product of its (nonzero) digits is 2239488, while the sum is 52.

The spelling of 196921431404026 in words is "one hundred ninety-six trillion, nine hundred twenty-one billion, four hundred thirty-one million, four hundred four thousand, twenty-six".