51263460426 has 8 divisors (see below), whose sum is σ = 102526920864. Its totient is φ = 17087820140.

The previous prime is 51263460389. The next prime is 51263460431. The reversal of 51263460426 is 62406436215.

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

51263460426 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4271955030 + ... + 4271955041.

It is an arithmetic number, because the mean of its divisors is an integer number (12815865108).

Almost surely, 2^51263460426 is an apocalyptic number.

51263460426 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

51263460426 is a wasteful number, since it uses less digits than its factorization.

51263460426 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8543910076.

The product of its (nonzero) digits is 207360, while the sum is 39.

The spelling of 51263460426 in words is "fifty-one billion, two hundred sixty-three million, four hundred sixty thousand, four hundred twenty-six".