51471535776278 has 8 divisors (see below), whose sum is σ = 77680968104568. Its totient is φ = 25577879741424.

The previous prime is 51471535776247. The next prime is 51471535776289. The reversal of 51471535776278 is 87267753517415.

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, 78944072951 + ... + 78944073602.

It is an arithmetic number, because the mean of its divisors is an integer number (9710121013071).

Almost surely, 2^{51471535776278} is an apocalyptic number.

51471535776278 is a deficient number, since it is larger than the sum of its proper divisors (26209432328290).

51471535776278 is a wasteful number, since it uses less digits than its factorization.

51471535776278 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 157888146718.

The product of its digits is 345744000, while the sum is 68.

The spelling of 51471535776278 in words is "fifty-one trillion, four hundred seventy-one billion, five hundred thirty-five million, seven hundred seventy-six thousand, two hundred seventy-eight".