51295395478 has 8 divisors (see below), whose sum is σ = 80288445168. Its totient is φ = 24532580424.

The previous prime is 51295395449. The next prime is 51295395491. The reversal of 51295395478 is 87459359215.

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, 557558601 + ... + 557558692.

It is an arithmetic number, because the mean of its divisors is an integer number (10036055646).

Almost surely, 2^51295395478 is an apocalyptic number.

51295395478 is a deficient number, since it is larger than the sum of its proper divisors (28993049690).

51295395478 is a wasteful number, since it uses less digits than its factorization.

51295395478 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1115117318.

The product of its digits is 13608000, while the sum is 58.

The spelling of 51295395478 in words is "fifty-one billion, two hundred ninety-five million, three hundred ninety-five thousand, four hundred seventy-eight".