51019105100 has 36 divisors (see below), whose sum is σ = 110726095368. Its totient is φ = 20404944000.

The previous prime is 51019105069. The next prime is 51019105157. The reversal of 51019105100 is 150191015.

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 11 ways as a sum of consecutive naturals, for example, 838715 + ... + 897485.

Almost surely, 2^51019105100 is an apocalyptic number.

51019105100 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

51019105100 is an abundant number, since it is smaller than the sum of its proper divisors (59706990268).

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

51019105100 is a wasteful number, since it uses less digits than its factorization.

51019105100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67466 (or 67459 counting only the distinct ones).

The product of its (nonzero) digits is 225, while the sum is 23.

Adding to 51019105100 its reverse (150191015), we get a palindrome (51169296115).

The spelling of 51019105100 in words is "fifty-one billion, nineteen million, one hundred five thousand, one hundred".