51434347042 has 32 divisors (see below), whose sum is σ = 88534140912. Its totient is φ = 22200182784.

The previous prime is 51434347009. The next prime is 51434347099. The reversal of 51434347042 is 24074343415.

It can be written as a sum of positive squares in 8 ways, for example, as 11976894721 + 39457452321 = 109439^2 + 198639^2 .

It is a junction number, because it is equal to n+sod(n) for n = 51434346992 and 51434347010.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 301203 + ... + 439990.

Almost surely, 2^51434347042 is an apocalyptic number.

51434347042 is a deficient number, since it is larger than the sum of its proper divisors (37099793870).

51434347042 is a wasteful number, since it uses less digits than its factorization.

51434347042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 741382.

The product of its (nonzero) digits is 161280, while the sum is 37.

The spelling of 51434347042 in words is "fifty-one billion, four hundred thirty-four million, three hundred forty-seven thousand, forty-two".