51394296178 has 8 divisors (see below), whose sum is σ = 77957640540. Its totient is φ = 25408416000.

The previous prime is 51394296143. The next prime is 51394296197. The reversal of 51394296178 is 87169249315.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 51201280729 + 193015449 = 226277^2 + 13893^2 .

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

It is a super-3 number, since 3×51394296178³ (a number of 33 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 144365823 + ... + 144366178.

Almost surely, 2^51394296178 is an apocalyptic number.

51394296178 is a deficient number, since it is larger than the sum of its proper divisors (26563344362).

51394296178 is a wasteful number, since it uses less digits than its factorization.

51394296178 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 288732092.

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

The spelling of 51394296178 in words is "fifty-one billion, three hundred ninety-four million, two hundred ninety-six thousand, one hundred seventy-eight".