51471154278 has 24 divisors (see below), whose sum is σ = 111594699216. Its totient is φ = 17145687600.

The previous prime is 51471154277. The next prime is 51471154283. The reversal of 51471154278 is 87245117415.

51471154278 is a `hidden beast` number, since 5 + 1 + 471 + 154 + 27 + 8 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51471154277) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 919033 + ... + 973428.

It is an arithmetic number, because the mean of its divisors is an integer number (4649779134).

Almost surely, 2^51471154278 is an apocalyptic number.

51471154278 is an abundant number, since it is smaller than the sum of its proper divisors (60123544938).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

51471154278 is a wasteful number, since it uses less digits than its factorization.

51471154278 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1893980 (or 1893977 counting only the distinct ones).

The product of its digits is 313600, while the sum is 45.

The spelling of 51471154278 in words is "fifty-one billion, four hundred seventy-one million, one hundred fifty-four thousand, two hundred seventy-eight".