1213894696078 has 8 divisors (see below), whose sum is σ = 1823439538440. Its totient is φ = 606081516600.

The previous prime is 1213894696057. The next prime is 1213894696087. The reversal of 1213894696078 is 8706964983121.

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, 432913968 + ... + 432916771.

It is an arithmetic number, because the mean of its divisors is an integer number (227929942305).

Almost surely, 2^{1213894696078} is an apocalyptic number.

1213894696078 is a deficient number, since it is larger than the sum of its proper divisors (609544842362).

1213894696078 is an equidigital number, since it uses as much as digits as its factorization.

1213894696078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 865831442.

The product of its (nonzero) digits is 31352832, while the sum is 64.

The spelling of 1213894696078 in words is "one trillion, two hundred thirteen billion, eight hundred ninety-four million, six hundred ninety-six thousand, seventy-eight".