51450414402 has 16 divisors (see below), whose sum is σ = 102903183072. Its totient is φ = 17149745760.

The previous prime is 51450414391. The next prime is 51450414427. The reversal of 51450414402 is 20441405415.

It is a self number, because there is not a number n which added to its sum of digits gives 51450414402.

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 7 ways as a sum of consecutive naturals, for example, 329158 + ... + 459614.

It is an arithmetic number, because the mean of its divisors is an integer number (6431448942).

Almost surely, 2^51450414402 is an apocalyptic number.

51450414402 is an abundant number, since it is smaller than the sum of its proper divisors (51452768670).

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

51450414402 is a wasteful number, since it uses less digits than its factorization.

51450414402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 196193.

The product of its (nonzero) digits is 12800, while the sum is 30.

Adding to 51450414402 its reverse (20441405415), we get a palindrome (71891819817).

It can be divided in two parts, 514504 and 14402, that added together give a triangular number (528906 = T₁₀₂₈).

The spelling of 51450414402 in words is "fifty-one billion, four hundred fifty million, four hundred fourteen thousand, four hundred two".