51402383650 has 12 divisors (see below), whose sum is σ = 95608433682. Its totient is φ = 20560953440.

The previous prime is 51402383629. The next prime is 51402383701. The reversal of 51402383650 is 5638320415.

51402383650 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 3 ways, for example, as 49980414969 + 1421968681 = 223563^2 + 37709^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 514023787 + ... + 514023886.

Almost surely, 2^51402383650 is an apocalyptic number.

51402383650 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

51402383650 is a deficient number, since it is larger than the sum of its proper divisors (44206050032).

51402383650 is a wasteful number, since it uses less digits than its factorization.

51402383650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1028047685 (or 1028047680 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 37.

The spelling of 51402383650 in words is "fifty-one billion, four hundred two million, three hundred eighty-three thousand, six hundred fifty".