197094267478 has 8 divisors (see below), whose sum is σ = 303631709472. Its totient is φ = 95883697656.

The previous prime is 197094267467. The next prime is 197094267493. The reversal of 197094267478 is 874762490791.

It is a happy number.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1331717950 + ... + 1331718097.

It is an arithmetic number, because the mean of its divisors is an integer number (37953963684).

Almost surely, 2^197094267478 is an apocalyptic number.

197094267478 is a deficient number, since it is larger than the sum of its proper divisors (106537441994).

197094267478 is a wasteful number, since it uses less digits than its factorization.

197094267478 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2663436086.

The product of its (nonzero) digits is 42674688, while the sum is 64.

The spelling of 197094267478 in words is "one hundred ninety-seven billion, ninety-four million, two hundred sixty-seven thousand, four hundred seventy-eight".