51209353954 has 16 divisors (see below), whose sum is σ = 83800648800. Its totient is φ = 23276000160.

The previous prime is 51209353883. The next prime is 51209353967. The reversal of 51209353954 is 45935390215.

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, 866782 + ... + 923974.

It is an arithmetic number, because the mean of its divisors is an integer number (5237540550).

Almost surely, 2^51209353954 is an apocalyptic number.

51209353954 is a deficient number, since it is larger than the sum of its proper divisors (32591294846).

51209353954 is a wasteful number, since it uses less digits than its factorization.

51209353954 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 97905.

The product of its (nonzero) digits is 729000, while the sum is 46.

The spelling of 51209353954 in words is "fifty-one billion, two hundred nine million, three hundred fifty-three thousand, nine hundred fifty-four".